Some psychoactive drugs can also affect the functions of the autonomic nervous system. Amphetamines, which are commonly prescribed to treat ADHD, can lead to elevated heart rates and increased arousal. References: 1  American Psychological Association. 2  APA concise dictionary of psychology.
If you are sick with strep throat, you will be contagious until you have been on antibiotics for at least 24 hours. However, your symptoms may last longer than that. It is important to take all of your antibiotics as prescribed.
1 Someone with the flu is contagious for a day or so before symptoms start, then remains contagious for 5 to 7 days once they appear. 2  The CDC considers someone to be contagious until the fever is back to normal, without the help of medication, for 24 to 48 hours.hen you have a contagious illness, like the flu or a cold, the sore throat is often accompanied by a runny nose. 1  The sore throat is sometimes caused by postnasal drip, as fluids from your sinuses drip down the back of your throat, causing redness and irritation. 2  The throat feels raw, irritated, and painful.