1) Too much exercise too soon. The body needs time to adapt to the demands you put on it. If you increase the amount of exercise you do too drastically from one week to the next, your body will not be able to recover sufficiently and you will get injured. Pace yourself. Limit yourself to 2 sessions a week for the first month before you ramp it up to 3-4 sessions per week. 2) Not enough variation If you are just getting back into your fitness journey and you are not willing to