Fitness Tip: Between sets, take 20 to 30 seconds to stretch the muscles you just worked.

Fitness Tip: Don’t train with a weight belt. Over time, regular training in a weight belt actually weakens your abdominal and lower-back muscles.

Fitness Tip: Increase the speed of your running strides – not their length – to go faster.

Fitness Tip: Don’t exercise when you’re sick, unless your symptoms are above the neck. This could do more harm than good.

Fitness Tip: When doing lat pulldowns, don’t wrap your thumb around the bar. Instead, place it on top alongside your index finger.