Common changes that can occur after age 70 and why it’s important to know about them early

It no longer feels deep or continuous. Nights become fragmented. You may wake up several times, struggle to fall back asleep, or feel tired even after spending enough hours in bed.

This isn’t traditional insomnia.

It’s largely tied to reduced production of melatonin, the hormone that regulates sleep cycles, along with increased sensitivity to light and noise. The body’s internal clock becomes more delicate, more easily disrupted.

What helps is not forcing sleep, but supporting rhythm.

Morning sunlight can help reset the body’s timing. Even short exposure matters. Limiting bright screens in the evening allows the brain to wind down more naturally. And keeping consistent sleep and wake times becomes more important than ever.

At the same time, temperature regulation begins to change.