It's peer pressure, boredom, and the choice to fit in with other teen peers from school.
A peer is someone who is the same age as you, and they do not have to even know you. You might be friends, you might not. They might be a student that's in the same grade as you.
basically, a peer is a student that is around your age.
Good mental health is characterised by a person's ability to fulfil a number of key functions and activities, including: the ability to learn. the ability to feel, express and manage a range of positive and negative emotions. the ability to form and maintain good relationships with others. “Suppressing your emotions, whether it's anger, sadness, grief or frustration, can lead to physical stress on your body. Which can affect blood pressure, memory and self-esteem.” Mental illness itself occurs from the interaction of multiple genes and other factors -- such as stress, abuse, or a traumatic event -- which can influence, or trigger, an illness in a person who has an inherited susceptibility to it. However Physical activity, Regular exercise or activity can have a major impact on mental and emotional health problems, relieve stress, improve memory, and help you to sleep better.
Answer: However, during exercise, many other muscles become important to respiration. During inspiration, the external intercostals raise the lower ribs up and out, increasing the lateral and anteroposterior dimensions of the thorax.
