Waking up several times during the night
Difficulty falling back asleep
Feeling tired even after spending many hours in bed

This is not insomnia in the traditional sense. It is a neurological change typical of this stage.

What helps

Getting natural sunlight in the morning
Avoiding bright screens at night
Keeping regular sleep schedules

2. When the body loses precision in regulating temperature

From age 70 onward, the system that regulates heat and cold becomes less efficient.
This means the body takes longer to adapt to temperature changes.

As a result, many older adults:

Feel cold when others do not
Overheat more easily
Sweat less, making it harder to cool down

This change is not just uncomfortable—it also increases the risk of heatstroke or hypothermia.

What helps

Dressing in layers, even indoors
Avoiding extreme temperatures
Staying well hydrated

3. Digestive changes that affect almost everyone

The digestive system also undergoes changes.
After 70, the stomach produces less acid, the intestines move more slowly, and the absorption of certain nutrients decreases.

This can lead to:

Feeling full quickly
Constipation
Deficiencies in vitamin B12, iron, or calcium

Many people assume it’s “normal to feel heavy,” but in reality, it’s a digestive system that now requires more care.

What helps

Eating smaller portions
Increasing natural fiber intake
Drinking water throughout the day