For a HEADACHE..EAT FISH? PLENTY OF FISH. Fish oil helps prevent headaches. So does ginger, which reduces inflammation and pain.
HAY FEVER? EAT YOGURT! Eat lots of yogurt before pollen season. Also-eat honey from your area (local region) daily.
TO PREVENT STROKE DRINK TEA! Prevents buildup of fatty deposits on artery walls with regular doses of tea. (Actually tea suppresses my appetite and keeps the pounds from invading...GREEN TEA IS GREAT FOR OUR IMMUNE SYSTEM)
INSOMIA~~CAN'T SLEEP?) HONEY!!! Use honey as a tranquilzer and sedative.
ASTHMA? EAT ONIONS!!! Eating onions helps ease constriction of brochial tubes. When I was younger my mom used to make onion wraps. She would boil onions, and place them in a ragged sheet, and put it around our throat. IT TRULY HELPED. Back then they had many wise methods of healing certain syptoms.