Видео с ютуба How To Feel Less Sleepy

Why You're Always Tired (and how to fix it)

How to Stop Feeling Tired: 4 Easy Tips to Boost Your Energy

Reasons Why You're Always Tired

Как спать 4 часа и чувствовать себя на 8 (научно обосновано)

Psychiatrist Explains Why You Feel Tired All The Time (No Matter What You Do...)

How To Survive A Day On No Sleep