Which balance ball chairs are best? Sitting incorrectly can cause discomfort and affect your posture. Sitting on a balance ball by itself can be beneficial when sitting correctly, but it can be very ...

All products featured on Self are independently selected by Self editors. However, when you buy something through our retail links, Condé Nast may earn an affiliate commission. Ask a physical ...

Ask a physical therapist how you can subtly level up your workouts, and they’ll probably recommend trying the best BOSU balls (and other types of balance trainers). If you’re unfamiliar, BOSU stands ...