When you elevate the heels more so than you elevate the sole of the foot, you trigger a cascade of compensations in the knees and hips that cause tight hip flexors, and then those hip flexors cause lower-back pain.
Tim FerrissIf you don't have time, the truth is, you don't have priorities. Think harder; don't work harder.
Tim FerrissLanguage learning deserves special mention. It is, bar none, the best thing you can do to hone clear thinking.
Tim Ferriss