A headgear for neck rehabilitation and weight training includes first and second straps forming a loop for wrapping a forehead of a user, an upper strap device abutting a top of a head of the user, and a lower strap abutting a chin of the user. The second strap is coupled to the first strap and is adjustable in length to fit the head circumference of the user. The upper strap device is adjustable in length to fit the spacing between the forehead and the top of the head of the user. The lower strap is coupled to the loop formed by the first and second straps and is adjustable in length to fit the chin of the user. The headgear can be assembled with one of two rehabilitation accessories in a rehabilitation mode or assembled with a weight training accessory in a weight training mode.