Aging, angiotensin system and dopaminergic degeneration in the substantia nigra
The following are common causes: Overuse: Repetitive overhead motion in sports (e.g., tennis, swimming) or occupations (e.g., painters, mechanics) Impingement syndrome: Compression of rotator cuff tendons under the acromion during arm elevation Age-related degeneration: Reduced blood flow and tendon elasticity in individuals over 40 Poor posture: Forward head and shoulder positioning increases stress on shoulder stabilizers Previous shoulder injuries: Dislocations or fractures can alter shoulder mechanics and increase risk How Is Rotator Cuff Tendinopathy Diagnosed
Its also rampant among "looksmaxxing" influencers, he says, and "tech bros" trying to project success who believe "you should be constantly trying to optimize." Caulfield compares it to the sudden influx of unregulated stem cell products that emerged several years ago, following advancements in stem cell research unrelated to what the products were actually marketing
Light, oxygen, and moisture can impact small-molecule stability
At 2.5 mg/mL, that same dose requires just 96 units, fitting comfortably in a 1 mL syringe
