They'll grow bigger/stronger. But if you train too hard/too frequent they'll break down instead.
Short term
they are enhanced
dont play sport
dehydration and muscle loss
When you are older if you pushed yourself too hard you will probably have a problem e.g back problems , or atheritis .
exercise will stimulate the muscles of the intestinal walls for increased peristalsis
For the long term effects of the respiratry system are that the lungs will increase in size because theyy are getting used to all of the exercise over a long period of time By Misssinglelips
what are the effects of an adult only doing exercise once a week but they smoke and always eat fast-food
The long term effect of exercise is stronger muscles. With stronger muscles, your body won't tire as quickly as it used to.
Short term: During exercise your body moves faster, meaning the joints have to work harder. This causes increased production of synovial fluid, which is secreted around synovial joints. To increase the range and ease of movements. Long term: Bones adapt to the stress caused by laying down more calcium. This increases bone density and strengthens the bones, making them more resilient to the pressure put on them by exercise.
hkj
the long-term effects of SSRIs are unknown