“Skin has a memory” : a dermatologist warns that only protecting yourself from the sun at the beach could cost you dearly
Picture yourself cycling to a lunch meeting on a bright July morning, or waiting in a queue outside a shop with your arm resting in the sun. These ordinary moments are exactly where the risk builds quietly. A dermatologist’s warning, first published in July 2025, makes one thing clear: how you choose to protect yourself from the sun during daily life matters far more than most people realise.
The Body Parts You Are Forgetting Every Single Day
Dermatologist Miguel Recio, from Clínica ABDerma, points to a specific set of zones that consistently go unprotected. According to Afssaps, the ears, neck and nape, temples, and the backs of the hands are among the most commonly missed areas. The décolletage is also vulnerable, because its skin is thin and low in sebaceous glands.
The lips, moreover, are fragile and dehydrate quickly. They require a lip balm that includes a solar filter. So when you protect yourself from the sun, the face alone is not enough – a generous, even application across every exposed surface is what counts.
Miguel Recio recommends “a simple but consistent routine: use a sunscreen every day, hydrate the skin well after sun exposure, drink enough water and choose gentle products, free from alcohol and strong fragrances.” That advice applies whether you are heading to a terrace lunch or simply commuting through the city.
“Skin has a memory, and what we do in summer can cost us dearly over time.” – Miguel Recio, dermatologist, Clínica ABDerma
Why Heat, Sweat and Air Conditioning Also Damage Skin
Sun exposure is only one part of the problem in summer. Miguel Recio notes that heat, sweat, pool chlorine, sea salt and air conditioning are all enemies of the skin, because they can dry it out, irritate it, or disturb its natural balance. The Spanish Academy of Dermatology and Venereology (AEDV) also highlights that summer skin endures clothing friction, insect contact and UV rays all at once.
Therefore, a broad approach to skin care becomes necessary in warm months. Reapplying sunscreen every two hours outdoors – especially when sweating or bathing – is a key part of that approach. The AEDV recommends a high level of protection, with a minimum SPF of 30.
Reading the UV Index: The Number That Should Guide Your Choices
According to Santé publique France, the right reference point when deciding how to protect yourself from the sun is not the location but the UV index, which measures radiation intensity. Below a UV index of 3, shade and clothing are generally enough for a healthy adult. However, that threshold is crossed more often than people assume – even on overcast days in the city.
From a UV index of 3 to 7, the DGCCRF recommends a minimum SPF 30, whether you are at the seaside or walking a Parisian boulevard. Beyond a UV index of 8, SPF 50 is preferable, and avoiding exposure between 12:00 and 16:00 is also advised by Afssaps. So the beach is no longer the only place where strong protection is needed.
Authorities also remind consumers that no sunscreen filters 100% of UV rays. Shade, a hat and sunglasses therefore remain necessary companions, whatever the SPF on the bottle.
UVA versus UVB: Two Very Different Threats
UVB rays are primarily responsible for sunburn. UVA rays, however, penetrate deeper into the skin, pass through glass and contribute to skin ageing and skin cancer risk. This distinction explains why dermatologists recommend a broad-spectrum product covering both UVA and UVB. Additionally, UV-protective clothing carrying a UPF rating in line with the EN 13758-2 standard offers a further layer of defence for those who protect themselves from the sun during long outdoor activities.
Driving with an arm near an open window, or sitting beside a sunny office window, also exposes skin to UVA. In those situations, many people do not think to protect themselves from the sun at all. Yet the risk is real and cumulative.
Everyday Moments Where Sun Protection Gets Skipped
The “no beach, no cream” reflex is a widespread habit. Yet Miguel Recio, in an article published on 6 July 2025 and confirmed on 7 July 2025, states clearly that not using sun protection is “one of the most serious mistakes.” UV rays can cause burns during a simple walk in the city or under a cloudy sky. Indeed, 55% of adults have experienced at least one blistering sunburn in their lifetime.
The ordinary exposures are the most overlooked. Consider the moments below where the impulse to protect yourself from the sun rarely arises:
- Having lunch at a terrace café
- Cycling to work or running in the evening
- Standing in a queue outdoors in full sun
- Driving with an arm near the window
- Walking through the city under a partly cloudy sky
Each of these situations involves genuine UV exposure. Moreover, a single morning application of sunscreen is often not enough if you spend time outdoors at midday, exercise, or perspire. Official recommendations converge on one point: apply a generous layer to all exposed skin, then reapply every two hours.
Miguel Recio also stresses that failing to reapply correctly is itself a problem, just as serious as not applying at all. To genuinely protect yourself from the sun in daily urban life, a broad-spectrum sunscreen covering both UVA and UVB belongs in the morning routine, every day of summer – not only when a beach bag is involved. Choosing a product without alcohol or strong fragrances, drinking enough water, and moisturising after sun exposure round out a skin care habit that protects both today and in the years ahead.
