Healthy Primix
Health topic

Sleep and Sleep Science

Sleep affects mood, focus, appetite and long-term health. Here we explain how sleep needs change with age, which evening habits make falling asleep easier, and how to plan a bedtime around your wake-up time.

We rely on guidance from public-health bodies and sleep-medicine societies, and we flag symptoms such as loud snoring with breathing pauses that should be checked by a professional.

What this topic covers

  • How much sleep you need

    Recommended hours by age group and why individual needs vary.

  • Evening habits

    Light, caffeine, meals and screens in the hours before bed.

  • Sleep schedules

    Consistent timing, weekends, naps and shift work.

  • When to get help

    Signs that a sleep problem needs medical advice.

Sleep guides

Videos on sleep

All videos
  • SleepShort

    STOP Doing This After 7 PM ❌ It’s Ruining Your Sleep

    Watch on YouTube (opens in a new tab)

Frequently asked questions

How many hours of sleep do adults need?

The US Centers for Disease Control and Prevention recommends 7 or more hours a night for adults aged 18 to 60, 7–9 hours for ages 61–64 and 7–8 hours for those 65 and older.

Source: CDC — About sleep (opens in a new tab)