Your joints, which link your bones together, are sensitive to heavy loads. Every pound on your frame puts 4 pounds of stress on your knees. It also strains your back, hips, and feet. That causes wear and tear that can lead to damage, aches, and pain. Being overweight also triggers inflammation. That can make all your joints, including in your hands, stiff, painful, and swollen.
‘Texting thumb’ is a real thing. Your tendons can get irritated and lock your thumb in a curled position. All that looking down at your phone is just as bad for your neck and shoulders, too. Every inch your head drops forward raises the load on your muscles. If you bend your neck so far that your chin touches your chest, it’s as if your neck has to support the weight of 5 heads instead of just one.