So what are the some other ways you can increase
body temperature not through a fever mechanism?
The easiest one to think about is hyperthermia,
which can occur during heat stroke.
And heat stroke is usually denoted between
exertional heat stroke such as, if as persons is
exercising and then collapsed, versus nonexertional
heat stroke such as, if a person was stranded in a desert,
or having unable to move very much and
response to a high heat stress.
There are also types of drug-induced hyperthermia.
These usually encompass taking in a substance that
increases your metabolic rate, such as amphetamines,
or can even occur with things like cocaine.
There are other malignant syndromes, and these
usually involve drug different changes, and usually
with things like anti-psychotic drugs can
induced some malignant syndrome.
Serotonin syndrome is also usually drug induced
through a serotonin reuptake inhibitors.
You have things like malignant hyperthermia, and these
usually occurs in response to an anesthetic
that has given during surgery. And finally, there
are some endocrine changes in the body, such as
increases in thyroid hormones that can cause
hyperthermia. So, if someone has a overactive
thyroid gland and produces too much T3 and T4,
you can increase body temperature and become hyperthermic.
Finally, one of the ways you cause hyperthermia is
through central nervous system damage or a stroke,
especially if that area affects the preoptic anterior
hypothalamus or one of the temperature regulatory areas.
Now, finally, we’re gonna go through some of the ways
and which body temperature normally changes.
And the reason why we need to go through normal
body temperature changes is so you understand
how fever can affect body temperature. So during a
normal day, fever usually fluctuates about a half
a degree centigrade. So that means, in the early
morning your temperature is very low, maybe
around 36,5. Late afternoon, it’s gonna be higher,
maybe 37,5. If you go to look at other temperature
rhythms at the body undergoes, they’re usually is a
temperature change across the menstrual cycle.
It’s usually low in the follicular phase
and higher in the luteal phase.
And that change can be around 0,3 degrees centigrade.
So you have some normal fluctuations in temperature
that do occur. Both in daily and across a month
for a women in their reproductive years.