If you're running to build bigger muscles & strength, then you're barking up the wrong tree my friend 
Strength training with progressive loading is what you need to build bigger muscles & strength!

Steady-state jogging/running is for your cardiovascular system!

Hope I posted in the right place.

I used to jog and run a lot in my younger days. Doing so in my adulthood now, my knee kinda hurt.

The question is, does running or jogging damage knee? Or it's some other factors?

wow first time hearing about the balls story

I do admit sometimes I will go commando

But for such (hardcore) exercise, need to prepare myself more

Thanks for the input!

Only tested on one arm, not used to the other side.

I think the GPS radiowave is quite strong, too much for my body to take 

Just want to see if anyone else faces the same case and if there is any method to alleviate it.

Bought the RM89 shoe and tested a few days.
I like the sole as it has more absorption and lighter.

Side note: I saw people using knee wrap, what's the purpose for?

I just get back to running and noticed that most finisher medal do not have event date? Any idea why?
Back in the days, most finisher medal has event date.

I am by no means a sifu

Your shoes look quite well worn and your right leg heavily supinates more than your left leg.
Since you mentioned that you are overweight, I suggest that you go for daily maximal cushioned shoes like Asics Nimbus, Saucony Hurricane, etc
Those should give you a very comfortable experience including above average durability

Hope this helps.
Yep running frequently combined with the rate of your body metabolism will cause you to look 'cengkung'. This usually is very prominent on your cheek and will cause a person to look older cos a runners' cheek tends to sag faster.

For some ppl, running will burn a high amount of calories thus you are losing weight rapidly. This is good if you are on the route to lose weight. The longer you run in Zone 2 heart rate of your age, the better the fat burning is.