Leaf spot first appears in rainy or humid weather as the plants are growing. They look like small brown spots with a water-soaked margin surrounded by a yellow halo usually on the upper halves of the iris leaves.
Two, caffeine enhances the sensation and contractility of the bladder. Another way caffeine can affect prostate health is through its ability to irritate the bladder because it is a theoxanthine, a family of drugs that includes theobromine (found in chocolate) and theophylline (found in tea). Theophylline also stimulates and irritates the bladder.
Caffeine is a mild diuretic, speeding up the urination cycle, but steals calcium which is lost through urine. Long term, heavy caffeine use leads to a rapid development of osteoporosis. 6. The effect of coffee on the cardiovascular health is controversial: some say it's good, others that it is a risk factor. Caffeine blocking adenosine constricts the brain's blood vessels.