Medically reviewed by Sanja Jelic, MD Key Takeaways The diaphragm is the main muscle used for breathing. The diaphragm helps ...

When it comes to toning the upper body, the biceps and triceps may get all the love, but chest exercises shouldn’t be overlooked. Chest workouts offer a variety of benefits from building strength to ...

The pectoralis major muscle is a large muscle in the upper chest, fanning across the chest from the shoulder to the breastbone. The two pectoralis major muscles, commonly referred to as the ‘pecs,’ ...

FOR MANY LIFTERS, chest day is a Monday ritual. For others, creating the perfect upper-body blend of strength, hypertrophy, mobility, and pec definition can be classified as an art form. Which of the ...