Effects of exercise
Immediate: can happen straight after/during exercise
Short term effects: usually happen 24 hours after exercise
Examples are
Red sweaty skin
Increased volume of breathing
Fatigue
Because lactic acid is building up
Because the body temperature heats up
Body needs more oxygen to diffuse into the lungs
Examples are
DOMS
Cramp
Due to the loss of body fluid
Because their are tiny microscopic tears in the muscle
click to edit
Ways to prevent short term effects are
Ice baths 
Short cool down period
Long term effects
Examples are
Improved Heart Size
Improved flexibility
Improved muscular endurance
Body shape may change
Heart rate and stroke volume increases
Sports like gymnastics can improve flexibility