I'm having issues doing this behind the back arm stretch on one

How To Improve Reaching Behind Your Back

Quick Stretches for Stress Relief You Can Do Right Now

Week 3 of the Hamstring/Toe-Touching Month: Check in NOW and tell us how you're doing and check out these sweet updates/guides/GIFs. : r/flexibility

6 exercises that improve posture and reduce back pain

Sexy Arm Workout 2021— Get Crazy-Toned Arms in 15 Minutes

8 Best Exercises for Back Workouts at Home

Why do some people love the stretch pain and some people hate it? : r/flexibility

8 lower back stretches for flexibility and pain relief

Shoulder Stretches

Why do my muscles ache the day after a big workout?

7 Resistance Band Stretches: Full Body Stretching Routine

Hip Opening Mobility Stretches (more in comments) : r/flexibility

Is this wrist flexion and extention normal? I'm literally able to bend my wrist fully downwards and touch the under of my arm with no pain and my wrist extention feels no