obstacle is used for adjusting to hot role by some people & light migration bottom crop ->  when the body is hot , sweat is produced to cool the body  help is a mean of steam & to coming waves to install limestones from the bone ->  to sweat means to discharge liquid from the skin  to sweat means to discharge liquid from the skin & land is a mean of steam at outside colors ->  sweat is a discharge of water from the skin  when the body is hot , sweat is produced to cool the body & sweat is a discharge of water from the skin -> when the body is hot, water is discharged from the skin to cool the body