Mayo Clinic Dermatologist: 5 Small Habits for Healthier, Younger, and Amazing Skin

Dr. Saranya Wyles emphasizes that skin is not simply a surface for beauty—it's an active organ that continuously relays information about overall health. She encourages a shift in thinking: listening to your skin is a bi-directional conversation, allowing us to both assess and impact our systemic well-being. The skin acts as a “check engine light,” giving early warning signs about internal conditions and environmental stressors.

Skin Reflects Internal Health and External Stress

Dr. Wyles and Mel Robbins highlight that the skin functions as a real-time dashboard for health, revealing clues that often precede symptoms elsewhere in the body.

Sudden Skin Changes Signal Deeper Health Problems

Often, patients notice changes such as new brown spots, fine lines, redness, or flushing appearing “all of a sudden.” However, Dr. Wyles points out these visible shifts are the product of processes brewing beneath the surface for months. When such changes occur, it’s important to investigate their underlying causes. This is not just a matter of vanity, but of self-care: new skin or nail pigment, rapid skin texture changes, and inflammation could all indicate deeper metabolic or systemic imbalances.

For instance, pigment changes in nails, whether white, brown, or black, can signal serious issues. Dark brown pigment particularly warrants dermatologist evaluation to rule out melanoma. Nails can also give clues about liver dysfunction or nutritional deficiency; for example, cirrhosis and fungal infections often show up as distinctive nail discolorations.

Skin Conditions May Indicate Serious Health Issues: Autoimmune Dysfunction, Inflammatory Diseases, Kidney and Liver Disease, Diabetes, Cardiovascular Disease

Common changes such as dryness, rashes, brown spots, acne, thinning hair, or psoriasis may reflect conditions ranging from autoimmune disorders and inflammation to kidney or liver disease, diabetes, and even cardiovascular risk. For instance, moderate to severe psoriasis is linked to a six-fold increase in 10-year risk for major heart problems including heart attacks and stroke, signaling that visible skin ailments can be markers of serious internal disease.

Low-level skin inflammation, visible as redness, can reflect broken blood vessels and changes in circulation. Such inflammation can occur in response to hormonal changes, life stages like menopause, or underlying health challenges.

Research Links Skin Aging Speed, Assessed by Facial Analysis, To Serious Health Outcomes Like Cancer Prognosis, Cognitive Decline, Physical Function, Telomere Length, and Lifespan

Recent studies show that perceived age—the age people look, assessed through facial analysis via AI—closely correlates with important health outcomes. For example, research involving over 6,000 cancer patients demonstrated that those who appeared older had poorer survival rates and prognoses. Similarly, the Danish twin study found that the older-looking twin often showed worse cognitive health, poorer physical function, and shorter telomere length, all markers of accelerated biological aging and shorter lifespan. Thus, “true skin age” is more than a superficial score; it directly informs risk for future disease and mortality.

Skin's Eight Critical Functions Impact Disease Protection and Wellness

Beyond its diagnostic value, healthy skin performs eight major physiological functions essential for personal wellness and disease prevention.

Skin's Circadian Rhythm: Daytime Defense Against UV and Pollution, Nighttime Repair and Regeneration

Skin operates in two main circadian modes. During the day, it shifts into defense: producing oils, secreting water, maintaining the barrier, and conducting immune surveillance to guard against ultraviolet (UV) light, pollution, and environmental damage. At night, skin transitions to repair mode, regenerating from daytime stress and facilitating repair and cell turnover.

Dr. Wyles highlights that if sleep is ...

Dr. Saranya Wyles explains the interconnected system behind “Skinspan,” outlining five central pillars: sleep, diet and hydration, movement, stress reduction or recovery, and external treatments. She emphasizes that skin can reset and respond to internal cues—such as proper sleep, nutrition, movement, and stress management—as well as external topicals, all of which collectively drive skin health and appearance.

Sleep Quality Affects Skin Repair and Regeneration; Poor Sleep Disrupts Skin Barrier and Accelerates Aging

Sleep is critical for skin repair and regeneration, with the circadian rhythm dictating skin’s “repair” and “protection” modes. If sleep is inadequate or fragmented, as during parenting young children or perimenopause, the skin cannot properly switch into repair mode. This confusion can lead to red, puffy, saggy, and crepey skin, as the skin is not given the time it needs to recover and the barrier is weakened.

Scientific studies support this connection. Good sleepers—those consistently getting 7-9 hours per night—show 30% better epidermal barrier recovery, allowing their skin to retain hydration, better protect itself against environmental damage, and function optimally. In contrast, just two nights of restricted sleep (3-4 hours each) significantly disrupt the skin barrier, increasing dehydration and water loss.

Magnesium threonate is recommended as a supplement taken one to two hours before bed to enhance sleep quality. Magnesium not only aids sleep but also activates skin gene expression and enzyme activity for improved hyaluronic acid and matrix protein production, supporting repair processes.

Dr. Wyles also notes that back sleeping helps preserve skin hydration by minimizing mechanical water loss, while a humidifier in the bedroom can help reduce overnight evaporation during skin repair.

Diet & Hydration: Reduce Inflammation, Control Blood Sugar, Nourish Skin

Diet profoundly influences skin health by modulating inflammation and blood sugar. A low glycemic index (low-sugar, low-carb) diet, rich in fruits, vegetables, beans, and whole grains, reduces acne breakouts by 23% over twelve weeks, applicable across acne types (systemic, stress, hormone). High sugar intake leads to glycation—sticky sugars damaging collagen and elastin, accelerating skin aging. Limiting sugar, especially from processed foods, and favoring whole, plant-based foods is key, as glycation builds up over time.

High-fiber diets are also beneficial; UK Biobank data of over 200,000 individuals showed high fiber intake correlates with fewer psoriasis flares by dampening glucose spikes and thus reducing glycation. Fiber, from sources like flaxseed and chia (both also rich in alpha-linolenic acid and, for chia, calcium), moderates post-meal glucose and benefits the gut-skin axis—helping manage conditions like eczema and reducing leaky skin barriers.

Dr. Wyles shares her “ABC” smoothie recipe—apples (with skin for quercetin), beets, carrots, flaxseed, chia seed, turmeric, and coconut water—for skin repair. Coconut water brings electrolytes and magnesium; turmeric supports anti-inflammatory pathways. The recipe can be adapted (with blueberries, spinach, yogurt, protein) for morning routines, delivering antioxidants, anti-glycation, and skin-supporting nutrients.

Hydration is also essential. For women, the recommendation is 10-12 cups of water daily (12-13 for men), upping intake during menopause or perimenopause due to higher baseline water loss and increased stress. Dr. Wyles stresses the myth that drinking water alone doesn’t fully hydrate the skin barrier; only a fraction of water consumed reaches the skin. Applying moisturizers containing humectants—glycerin, ceramides, beta-glucans, and colloidal oatmeal—pulls water into the skin. Hydration routines should adjust for changes in climate and humidity.

Exercise Boosts Wound Healing, Reduces Inflammation, and Stimulates Skin Repair Molecules

Physical exercise triggers positive skin responses. In studies with older adults, regular exercise accelerated wound healing by an average of 10 days compared to sedentary controls. Exercise produces beneficial exosomes—molecular “text messages”—that signal repair throughout the body, including the skin, via improved circulation and metabolic signaling.

Weightlifting, in particular, is superior to cardio for skin health. A 16-week study of middle-aged women found resistance training led to better skin elasticity and improved collagen and elastin in the upper ski ...

Sunscreen: Only Mineral, Chemical, or Tinted Formulations Offer UV Protection

Saranya Wyles emphasizes that using sunscreen is one of the best ways to protect the skin barrier from UV exposure. She recommends a broad-spectrum SPF 30 or greater and stresses the importance of regular reapplication.

Mineral (Zinc Oxide/Titanium Dioxide) and Chemical (Avobenzone/Bemetrazol) Sunscreens Offer Broad-Spectrum UVA/UVB Protection, Appearing Dark Under UV Cameras When Applied Correctly

Both mineral and chemical sunscreens are effective protectants. Mineral sunscreens, such as those containing zinc oxide or titanium dioxide, and chemical sunscreens, such as avobenzone and the newly FDA-approved bemetrazol (BEMT), are widely available at drugstores. Wyles demonstrates with a UV camera that both types, when properly applied, appear dark under UV light, confirming their ability to block UVA and UVB rays and thus provide broad-spectrum protection. Chemical filters work by absorbing UV rays and releasing the energy as heat, while mineral sunscreens physically block the rays.

Tinted Sunscreen With Iron Oxides: UV and Visible Light Protection for Melasma-Prone Skin, Plus Cosmetic Benefit

Tinted sunscreens, which contain iron oxides, provide protection not only against UV rays but also visible light. Wyles explains that individuals with melasma-prone skin especially benefit because visible light can trigger pigmentation, and the iron oxide tint offers this added barrier. Although often believed to be purely cosmetic, the tint is an active part of the formulation’s light protection.

Natural Oils Like Coconut Oil and Beef Tallow Increase Sunburn Risk By Attracting More Sun, Despite Claims of Protection

Wyles addresses myths around “natural” sunscreen alternatives such as coconut oil and beef tallow. Under UV camera, these oils do not block any light, offering zero protection and instead increasing the skin’s propensity to burn. She cautions against relying on these substances, which have no scientific backing as UV filters.

Reapply Sunscreen During Commutes; Car Windows Allow UVA/UVB Rays, Causing Aging on the Window Side of the Face

Wyles references the classic example of a truck driver who suffered more sun damage on the side of his face exposed to a car window. UVA and UVB rays can penetrate glass, including car windows, and most daily sun damage occurs during commutes. She recommends keeping sunscreen in the car and reapplying it—tinted windows do not offer reliable protection.

Daytime Skincare: Use Antioxidants; Nighttime Skincare: Use Retinoids and Peptides for Regeneration

Antioxidant Defense: Vitamin C, E & Ferulic Acid Against Free Radical Damage from Pollution, Light & UV

For daytime, Wyles recommends using antioxidants, such as vitamin C, vitamin E, and ferulic acid. These compounds combat free radical damage produced by environmental aggressors like pollution and UV rays, minimizing skin damage and oxidative stress.

Introduce Retinols and Retinoids at Night; Switch to a Weaker Retinoid if Prescription-Strength [restricted term] Causes Peeling to Build Tolerance Gradually

Nighttime is when the skin enters regeneration mode. Wyles advises introducing retinols or prescription retinoids in the evening. If peeling or over-exfoliation occurs, switching to a less potent, over-the-counter retinoid builds tolerance and helps maintain consistency without damaging the skin.

Copper Peptides: Strengthening Skin and Stimulating Collagen

Wyles favors topical copper peptides for their evidence-backed benefits, such as strengthening the dermal-epidermal junction and stimulating collagen production, especially under the eyes.

Injectable Peptide Stacks Pose Risks Without Evidence; Topical Copper Peptides Safer

She warns against the trend of injectable peptide "glow stacks"—combinations of peptides like BPC157, TB500, and GHK copper peptide—because, aside from copper peptides, there is no clinical skin data supporting their effectiveness or safety. Injectable routes may risk copper overload and require additional monitoring. Topical copper peptides, by contrast, are safer and evidence-based for skin health.

Nighttime Moisturizers With Humectants Like Beta-Glucans and Ceramides Strengthen Your ...

Aging skin and facial changes are commonly misunderstood as mere issues of skin elasticity, but the real culprits lie much deeper in bone structure, hormonal changes, and the impact of new weight loss drugs.

Jowls and Facial Sagging Are Caused by Loss of Jaw and Facial Bone Density Rather Than Skin Elasticity, Meaning That Optimizing Bone Health Through Nutrition and Dental Care Addresses the Root Cause of Age-related Facial Descent

Layers of Facial Structure

Saranya Wyles compares the face to a multilayered cake to illustrate its structure. The “red velvet” top is the epidermis, the outermost skin layer that sheds regularly. The second layer, the “buttercream icing,” is the dermis, where structural proteins like collagen and elastin create the skin’s scaffolding. The “vanilla cake” beneath is the hypodermis, containing fat for cushioning and temperature regulation. Below all, the “platter” or “marble pedestal” represents muscle and ligaments, and beneath that, the facial bones. These bones serve as the base on which all the other facial layers rest and are critical in maintaining facial shape.

Aging Reduces Facial Bone Density, Causing Jowls and Sagging as Unsupported Skin Descends

With aging, bone density decreases—much like lowering the cake from a high pedestal to a short plate. As facial bones lose volume due to osteopenia or osteoporosis, the skin and underlying soft tissues that were once stretched tightly over the bone begin to sag. This descent is primarily a gravity issue: the skin, no longer supported, hangs beneath the jawline, manifesting as jowls and sagging cheeks.

Dental Health Affects Jaw and Jowls, Making Care Vital for Facial Structure With Bone-Supporting Nutrition

Dental health further affects facial appearance as teeth crowding, a common age-related change, alters the support for the jaw and jowls. Good dental hygiene—brushing and flossing—can help preserve jaw structure and, indirectly, the contours of the face. Additionally, nutrition-rich in leafy greens supports bone health via increased calcium and vitamin D absorption.

Preventing Facial Descent: Leafy Greens, Strength Training, and Bone Density Support

Proactive measures to delay facial descent include regular dental care, eating a diet high in leafy greens to support bone strength, and engaging in strength training. Strength training not only supports overall musculoskeletal health but also signals the facial muscles to maintain tone and connection to the skin.

Micro-Focused Ultrasound Tightens Facial and Neck Muscles By Stimulating Collagen With Ultrasound Energy, Often Requiring Consistent, Multiple Treatments for Visible Results

For those seeking non-invasive facial tightening, micro-focused ultrasound can stimulate the collagen “spanx” layer of the face and neck. These treatments, often marketed as “non-invasive facelifts,” deliver ultrasonic energy to the superficial muscular aponeurosis system to induce tightening and require regular, ongoing sessions for best results.

Glp-1 Medications Cause Facial Volume Loss and Sagging, Creating a Prematurely Aged Appearance Without Actual Accelerated Aging

GLP-1 medications, such as Ozempic, have revolutionized weight loss but often produce noticeable facial side effects.

20 Pounds Lost On Glp-1 Causes ~10% Facial Volume Loss From Fat Layer

Wyles notes that with every 20 pounds of weight lost on a GLP-1 drug, about 10% of facial volume is lost, primarily from reductions in the mid-face fat compartments. This loss is critical, as mid-face volume confers a youthful look—think the full cheeks of a child versus the hollowed cheeks seen after rapid weight loss.

"Ozempic Face" Describes Sagging Skin From Rapid Facial Fat and Muscle Loss, Opposite of Slow Skin Stretching During Pregnancy, Representing Fast Involution With Skin Sagging From Quick Loss of Structural Support

The term “Ozempic face” refers to the resulting sagging and laxity, a visible aging effect that does not come from accelerated cell aging but from the rapid loss of support structures. Unlike the gradual skin stretch that occurs during pregnancy, GLP-1 related weight loss is fast, leading to involution and sagging as the skin cannot adapt quickly to the new, underlying shape.

Glp-1 Facial Volume Loss: Not Irreversible Aging but Rapid Structural Change; Early Strength Training and Collagen-Stimulating Procedures Can Help Preserve Facial Structure

The facial changes from GLP-1 medications are not the same as irreversible chronological aging but are structural consequences of rapid volume loss. To mitigate this, patients are advised to start strength training early in their weight loss program. Building muscle, including facial muscle, stimulates skin-supporting signals and helps preserve the “scaffold,” keeping the skin tighter.

Strength Training During Weight Loss Activates Beneficial Exosome Signals to Target ...