Assignment #5

 Topic: How caffeine and alcohol affect your sleep

One-third of our lives spends sleep, which is very important to people, but now people live a busy life and sleep time is shorter, so we should learn to achieve the highest quality of sleep in a limited time.

Through this video, I learned:

1. It turns out that after 5-6 hours of drinking coffee, half of the caffeine you consume is still circulating in your body.

2. In fact, alcohol can't help you sleep at all, but alcohol may cause problems for your sleep.

By understanding this knowledge, I will pay attention to the time and amount of drink when drinking these drinks in the future, so that I can have a better sleep.

Assignment #4

Topic:  How to make stress your friend

Through this speech, I learned that it is very important to view stress. If we think stress is harmful, then stress will really hurt you, but if we don't think it's harmful but treat stress as a challenge and try to control it, then stress will not have any impact on us.