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.
Youâre still contagious: from the first day of symptoms to 24 hours after you start taking antibiotics. The streptococcal bacteria is the culprit behind the classic symptoms: sudden sore throat, pain when you swallow, fever over 101 F, swollen tonsils, swollen lymph nodes, and white or yellow spots on the back of the throat.