# 所以如果你只睡六個小時或更少,得不到該有的充足睡眠紡錘波,腦就無法讓學習能力恢復,這值得我們從更廣的社會層面來思考。——《為什麼要睡覺?》
×
Sign in
Email
Password
Forgot password
or
By clicking below, you agree to our
terms of service
.
Sign in via Facebook
Sign in via Twitter
Sign in via GitHub
Sign in via Dropbox
Sign in with Wallet
Wallet (
)
Connect another wallet
New to HackMD?
Sign up