open the vents, keep the visor open all the way or at least cracked open
You don't lose it.
If you fall and hit your head on the sidewalk, a helmet will keep you from busting your head open. If you fall of a bike and land on your head, a helmet will protect you head.
You could, but you will keep your head warmer if you wear your beanie UNDER your helmet.
no
to keep it on your head!!!!!!!
Sun helmet (they were designed to keep the head cooler in hot climates).
keep a cool head.
You could say, "don't panic", or, "keep a level head", or "keep your head", or "maintain your discipline or composure", etc.
Helmets are built to absorb one hard impact and keep your head safe. That's why, in most cases, if a helmet has a hard impact in an accident, it may be of little protective value in another mishap. Most helmet manufacturers recommend that, under normal use, you should replace your helmet every two to four years. If you notice any signs of damage before then, replace it sooner. Fiberglass helmets may crack or break if dropped. And, if you see any light brown spots near the rivets of a polycarbonate helmet, it is probably damaged and should be replaced.
an elephant uses its ears to keep cool by flapping them around its head therefor keeping it cool
an elephant uses its ears to keep cool by flapping them around its head therefor keeping it cool
Full face snowmobile helmets and motorcycle helmets both protect the riders head and face from injury and the elements and can be used interchangeably. The only difference is that some snowmobile helmets have a breath box to keep the face shield from fogging up. I got my helmet from rideinstylehelmets.com.