Definitions and Classification of Blood Pressure Levels. Essential, primary, or idiopathic hypertension is defined as high BP in which secondary causes such as renovascular disease, renal failure, pheochromocytoma, aldosteronism, or other causes of secondary hypertension or mendelian forms (monogenic) are not present. Essential hypertension accounts for 95% of all cases of hypertension.
In 1996, California voters passed Proposition 215, making the Golden State the first in the union to allow for the medical use of marijuana. Since then, 22 more states, the District of Columbia and Guam have enacted similar laws.
Marijuana is legal in three U.S. states for recreational use: Alaska, Colorado, and Washington. Medical marijuana is approved in over 20 U.S. states. But regardless of its legality, it is important to remember that marijuana carries with it certain medical risks. Know the risks before you decide to use it or not.