First things first: it’s impossible to isolate any particular part of your body. Just because you’re performing a tricep pressdown, it doesn’t mean that only your tricep is working. Instead of thinking about muscles, it’s better to look at movements if you want to develop real strength, build muscle, and be resilient enough to …

Heat is given off in every chemical reaction. Your metabolism is the sum total of all of the chemical reactions in your body. Take your temperature regularly, and if it varies very far from the normal 98.6 degrees, you’re running less than optimally. In the long term, grip strength is directly correlated to all …

I’m 35 years old. I’ve had both knees and a shoulder reconstructed. I have a bad hip and herniated disks in my neck. I wrestled year round from the time I was 9 or 10 years old through college, with average genetics at best, so I tried to out work and out train everyone …