Symmetrical soreness that fades within a few days is usually normal. Sharp, one-sided, repeatable, or worsening pain is a warning sign. If discomfort eases as you warm up, keep going. If it sharpens every …

Sleep and injury recovery work as one system. During deep sleep, your body releases growth hormone, rebuilds tissue, calms inflammation, and resets pain sensitivity. Shorten that window, and healing slows, pain sharpens, and progress …