Some years ago, I was introduced to a gym by a friend. On the first day I did some good workout that impressed even the coach.
However, the following day I had difficulties waking up, walking, even laughing. Every part of my body that could ache was aching. So, I stayed away from the gym for about four days to recover. When I showed up the fifth day, my coach looked at me at told me that if I wanted to get benefits from the gym consistency is more important than intensity.