Sometimes the issue is not simply the number of hours you sleep.
Your routine during the day can have a surprisingly big impact on how you feel.
A few things worth looking at:
Getting very little daylight during the day
Sitting for hours without much movement
Eating very heavy meals, especially during the day
Not drinking enough fluids
Going to bed and waking up at completely different times
Spending most of the day indoors
Trying to compensate for poor sleep with caffeine
One practical thing that helps is getting outside and moving early in the day. Even a short walk can be a better start than immediately sitting at a desk with coffee.
If tiredness is persistent despite good sleep and a healthy routine, it's worth discussing it
with a healthcare professional rather than assuming you just need more sleep.
Full story:
https://healthyfye.quora.com/Why-do-I-feel-tired-even-when-I-m-getting-enough-sleep
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