Hitting the floor...
...may be of help sometimes. But it depends on the height, the fall starts from. The fall may be long and slow and perhaps it is so long that you do not know you're falling, anyway. Problem with this: There will be the floor coming along some day. If this day is far from now, the hit will be severe and devastating nonetheless. Or, it will be devastating right because of this. But after all, we do not choose this, that thought is hopefully alleviating the effects...