As stated in Chapter 1, caffeine is the most widely used central nervous system (CNS) stimulant in the world. It has numerous pharmacological and physiological effects, including cardiovascular, respiratory, renal, and smooth muscle effects, as well as effects on mood, memory, alertness, and physical and cognitive performance. This chapter provides a brief summary of the metabolism and physiological effects of caffeine| www.ncbi.nlm.nih.gov
More people in Australia can now save lives by giving plasma, a powerful type of blood donation. This includes gay and bisexual men, more transgender people, those taking pre-exposure prophylaxis (PrEP), and many others.| Australian Red Cross Lifeblood
