Not getting enough sleep can lower your sex drive, weaken your immune system, cause thinking issues, and lead to weight gain. When you don't get enough sleep, you may also increase your risk of certain cancers, diabetes, and even car accidents.

Disrupting your body's circadian rhythms can lead to insomnia. Causes include jet lag from traveling across multiple time zones, working a late or early shift, or frequently changing shifts. Poor sleep habits.

Insomnia, the inability to get to sleep or sleep well at night, can be caused by stress, jet lag, a health condition, the medications you take, or even the amount of coffee you drink. Insomnia can also be caused by other sleep disorders or mood disorders such as anxiety and depression.

12 Tips to Avoid Daytime Sleepiness:

1. Get adequate nighttime sleep.
2. Keep distractions out of bed.
3. Set a consistent wake-up time.
4. Gradually move to an earlier bedtime.
5. Set consistent, healthy mealtimes.
6. Exercise.
7. De-clutter your schedule.
8. Don’t go to bed until you’re sleepy.
9. Don’t nap late in the day.
10. Create a relaxing bedtime ritual.
11. Avoid "nightcaps."
12. See a sleep specialist.