I’m a personal trainer — these are the best lower back stretches you can do
Lie flat on your back with your knees bent, feet flat on the floor, and arms by your side. Engage your core and start with a neutral spine. Keeping your legs and arms relaxed, gently tuck your ...
Crunches by age: Here's how many you should be able to do
A fitness trainer shared how many crunches people should be able to do according to their age. Here's what to know about the ...