Once you incur some injury, it never heals thoroughly and the
injured part will never be as it was before the injury. 
Look at my Minor Ligament Tear on my right knee... now, before it
rains, I get an ache... darnit, it's now a bloody weather
indicator!! 
And then, when I work night shifts and the air-con's too cold, it
gets all achy too!
During my recent 'special assignment', it was a rainy night and as
I was climbing up the stairs, my colleague remarked, 'Hey, you walk
real funny on your right leg... like it's going to give way
anytime!' ... and she didn't even know about my injury. 
So, morale of the story is - If you wanna be some gung-ho sports
hero, or if you're clumsy and incur some silly injury, you'll live
with it the rest of your lives and when you become elderly, you
will get HONG-SIP (Rheumatism)!!!
So, stellazio, stop dreaming of becoming some ... what... David
Beckham??
