Another example is extreme sport

Another example is extreme sport

所有跟贴·加跟贴·新语丝读书论坛

送交者: VTA 于 2008-06-27, 09:54:34:

回答: 锻炼也上瘾由 Enlighten 于 2008-06-27, 09:40:09:

I believe the brain reward system is activated.

现在明白了为什么这些人即使摔的头破血流但养好了还接着去 (无内容) - Enlighten (0 bytes) 2008-06-27, 10:24:59 (238914)