Increases the rate of ventilation and dilates the bronchi and alveoli
1.get enough sleep.
2.get your proper water supplement
3.focus on your VITAMINS and MINERALS especiall CALCIUM and VITAMIN D
4.do some physical activity
Reading people. Simply because when you read people you are watching to see how the act, what they like to do, who they hang around, who they are, how they talk, walk, ect. You can sometimes do this before deciding on who you might want to be friends with.It helps a lot. I hope my answer helped you
The correct answer is: B.calcium -rich