Come home from uni with my bike

>come home from uni with my bike
>always try my hardest to arrive as fast as possible to train my body
>clock always a little more than 8 minutes
>come home listening to eurobeat
>so much energy and it's so fun to force my legs to do their hardest even when I can't increase the speed anymore
>arrive about 5 minutes and 10 seconds after leaving the uni
>literally can't walk properly
>legs hurt so much I wait in pain on my bed for a minute before being able to write this shitty blog post
What is the science behind this?
Also, I'm feeling a weird taste on my mouth.

How far away from your uni is your house?

I think OP died of exhaustion.

During physical exercise, it is believed that part of your muscle tissue gets damaged, and grows stronger if you give it enough rest. This is the fundamentals of muscle growth.

The weird tase in your mouth is most likely semen.

Almost.
I'm aware of the fundamentals of muscle growth.
Also, I knew someone would make a joke about that. It wasn't salty. I mean, it wasn't semen since I never tasted it. It just wasn't salty and I only mentioned that because the taste in my mouth wasn't salty.
3,1 kilometers.

user, it's ok being a faggot.

The weird metal/blood/iron taste in your mouth is caused by acute heart failure.

I don't think it's actually bad for you, but you could probably drop the intensity a bit

also

I'm not.
But it's so fun...
I agree that today was an overkill for sure though.

Lactic acid

I do the same OP, but with my car