Have you ever felt you would faint? All you need to do is stiffen your lower extremities, so that you are walking stiff legged. The blood can't rush to your head, this works when a situation makes one nervous.

It can be as simple as how you prepare our meals. Do not fry food. Instead, bake. Broil, roast, steam or poach. Let fat drop sway during cooking and drain the fat afterward.

If you get queasy in a car or on a boat, try sucking on a lemon wedge.
It should quickly ease your discomfort.

If you exercise early in the day rather than late at night you may have a more restful night sleep.