old age&joints out of wack
What you're describing sounds a lot like a worn or damaged CV joint. Check the half-shaft and see if the boot is intact or if grease has leaked out. If the boot isn't perfect or if you can see any grease that has been thrown from the boot, the CV joint is toast.
sounds like a cv joint
while resting our heart doesn't have to work as hard but while we are exercising that causes more blood to pump through our body causing it to beat faster than usual
You die
Yes, this watch would be a great choice to wear while exercising.
You can maximize your time by listening to audiobooks or podcasts while exercising, allowing you to read or learn while working out. This way, you can multitask and make the most of your time.
stop the exercise
Depends on the person, for some exercising in a relaxed state works better than a "pumped" state.Generally fast music helps most people while exercising
of course, your supposed to drink water while your exercising
You don't - at least not while exercising it
a broken rod or valve lifter
having correct form while exercising helps form good habits on top of preventing injury that is the most important and most beneficial reason