Practical tip: Periodically swim with your head up, looking forward, for up to 20 strokes. Called the "lifeguard swim," this ...

So, which should you do first: cardio or weights? It’s almost surprising we’ve progressed to a place where guys are asking this question. Gym wisdom long held that cardio can hurt your gains ...

The picture shows him standing on a treadmill, mid-cardio session, looking totally in the zone. His gym look? A classic tank top and shorts combo that is as stylish as it is practical.

Cardio is a key part of any weight loss regimen ... EPOC is characterized by an increased oxygen intake and metabolism that takes place while the body recovers from exercise.