Skin

Sunscreen Still Matters at Seventy — Here Is Why

A common assumption says the damage is already done. Dermatologists disagree, and the reason is more interesting than the advice.

The Kitchen Table Report · 5 min read · General information, not medical advice

There is a quiet assumption behind a lot of decisions after sixty: whatever the sun was going to do, it has done. Sunscreen feels like a young person's concern — something for holidays and for people worried about wrinkles.

It is a reasonable-sounding assumption and it does not hold up.

The damage is cumulative, and cumulative does not mean finished

Sun damage accumulates across a lifetime. That is true, and it is why the assumption feels sensible. But cumulative means each additional exposure adds to the total — not that the total was reached at some point and further exposure is free.

There is a second thing that changes. Skin becomes thinner with age, produces less of its own protective pigment, and repairs itself more slowly. The same hour in the garden is handled less well at seventy than at forty.

The practical result is that skin cancer diagnoses are more common in older adults, not less. Age is not protective here.

The places people miss

The face gets attention because it is visible in a mirror. The areas that account for a disproportionate share of problems are the ones nobody looks at:

• The ears — especially the tops, and especially for men with shorter hair
• The back of the neck
• The scalp — along a parting, or anywhere hair has thinned
• The backs of the hands and the forearms — the highest-exposure skin most people own, because they are out in every season
• The nose and the lower lip

None of these involves a beach. They involve driving, gardening, walking to the shops and sitting outside with a coffee — the ordinary exposure that accumulates precisely because nobody counts it.

What makes it stick

Most people do not skip sunscreen because they disagree with the advice. They skip it because applying it is a separate task they have to remember.

• Keep it where you already stand. Next to the toothbrush, not in a drawer. Morning face routine, not sun routine.
• A hat does more work than any product. Wide brim covers ears, neck and scalp in one movement, and never needs reapplying.
• Reapply if you are out for hours. One morning application does not last through an afternoon in the garden.
• Cloud is not protection. A significant proportion of UV comes through cloud cover, which is why people burn on days that did not feel sunny.
• Find one you do not mind wearing. The formulation you tolerate daily beats the superior one sitting unused.

The part that is not about sunscreen

Worth adding, because it matters more than product choice: know what your skin normally looks like, and notice changes.

A spot that changes shape, colour or size, a sore that does not heal within a few weeks, or anything new that looks different from your other marks is worth showing to a doctor. Most such things turn out to be nothing. The ones that are not are far easier to deal with early.

That is a five-minute observation once in a while, and it is the single most useful habit in this entire article.