Many coffee drinkers are familiar with coffee jitters, a nervous condition that occurs when one has had too much caffeine. Coffee can also increase blood pressure among those with high blood pressure, but follow-up studies showed that coffee still decreased the chance of dying from heart disease in the aggregate. Coffee can also cause insomnia in some, while paradoxically it helps a few sleep more soundly. It can also cause anxiety and irritability, in some with excessive coffee consumption, and some as a withdrawal symptom. There are also sex specific effects, in some PMS sufferers it increases the symptoms, and it can reduce fertility in women, also it may increase the risk of osteoporosis in postmenopausal women, and there may be risks to a fetus if a pregnant woman drinks 8 or more cups a day (48 oz or more).
iPod mini was initially available in five colors: silver, gold, blue, pink, and green. Silver models have sold best, followed by blue ones. iPod mini has largely the same feature set as the full-sized iPod, but lacks support for some third-party accessories. Its smaller display has one less line than previous models, limiting the on-screen track identification to title and artist only.