Supplies, food, utilities
1. Control group
2. Placebo
3.control group
4. Double-blind
5. Post-marketing
1) identifying health risks early on before they become worse and more difficult to treat.
2) Discussing positive life-style changes with your doctors including giving up smoking, losing weight and taking more exercise.
Answer:
A decrease in pressure levels, when you go from lying to standing, usually these pressure drops, cause vertigo and loss of consciousness.