3 ms·
You need around 7-8 hrs of sleeping to focus and proper brain functions. Only 3-4% of world people can survive and work perfectly with 4-5 hrs of sleep.
by tech3ad 9y ago
You need around 7-8 hrs of sleeping to focus and proper brain functions. Only 3-4% of world people can survive and work perfectly with 4-5 hrs of sleep.