How to: Lie on your back with your right knee bent and foot flat on the floor (a). Extend your left leg up to the ceiling and wrap a strap around the sole of your left foot (b). While holding both ends with your left hand, extend your right arm directly out to the side in order to anchor yourself (c). Slowly let the left leg fall toward the left while keeping your right side grounded. Hold for six to eight breaths, then repeat on the opposite side.
If you’re someone who’s got a good stretching routine down, both before and after a HIIT workout, bike ride or run, odds are the discomfort you feel indicates that there are grounds for more strengthening exercises. It’s important to add that many yogis with extremely flexible hips run into overstretching injuries like hip flexor strains. But, these injuries aren’t just limited to the uber-flexible. Runners, cyclists, and Stairmaster lovers might strain these muscles due to frequent overuse. We’ll share a hip flexor workout below but, first up, some stretches.

Some of these red flags are much less red than others, especially depending on the circumstances. For instance, “weight loss” is common and often the sign of successful diet! (Well, at least temporarily successful, anyway. 😃) Obviously, if you know of a harmless reason why you have a red flag symptom, it isn’t really a red flag (duh!). But every single actual red flag — in combination with severe low back pain that’s been going on for several weeks — is definitely a good reason to get yourself checked out.
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