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 …

I love the TRX. Kettlebells are great, too. I use barbells and dumbbells all the time. The fact is, they’re all awesome tools, and tools are meant to be used to complete specific jobs. That’s why you have a toolbox-to carry all of the different tools you need to do different jobs. After all, …

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 …