unilad homepage
unilad homepage
  • News
    • UK News
    • US News
    • World News
    • Crime
    • Health
    • Money
    • Sport
    • Travel
  • Music
  • Technology
  • Film and TV
    • News
    • DC Comics
    • Disney
    • Marvel
    • Netflix
  • Celebrity
  • Politics
  • Advertise
  • Terms
  • Privacy & Cookies
  • LADbible Group
  • LADbible
  • SPORTbible
  • GAMINGbible
  • Tyla
  • UNILAD Tech
  • FOODbible
  • License Our Content
  • About Us & Contact
  • Jobs
  • Latest
  • Archive
  • Topics A-Z
  • Authors
Facebook
Instagram
X
Threads
TikTok
YouTube
Submit Your Content
Extreme heat can make these four common health conditions worse, according to experts
Home>News>Health
Updated 07:46 24 Jun 2026 GMT+1Published 19:54 23 Jun 2026 GMT+1

Extreme heat can make these four common health conditions worse, according to experts

Some parts of America are expected to exceed temperatures of 100°F in the coming days

Niamh Shackleton

Niamh Shackleton

google discoverFollow us on Google Discover
Featured Image Credit: Getty Stock Image

Topics: Weather, US News, Health

Niamh Shackleton
Niamh Shackleton

Niamh Shackleton is an experienced journalist for UNILAD, specialising in topics including mental health and showbiz, as well as anything Henry Cavill and cat related. She has previously worked for OK! Magazine, Caters and Kennedy.

X

@niamhshackleton

Advert

Advert

Advert

The warmer temperatures sweeping across the globe this summer could cause some people's health conditions to worsen.

A heat advisory has been issued in Southern California today (June 23) and temperatures will peak well above average on June 24, according to CBS News.

The National Weather Service's (NWS) warning will be in place until 9pm Thursday.

Lancaster is expected to exceed 100°F, and Los Angeles will see temperatures of 85°F. Meanwhile, Santa Clarita is predicted to hit 96°F and Pasadena will peak at 92°F.

Advert

Parts of New Mexico, Texas, Oregon, Washington, and Florida are also under heat advisories at the time of writing.

American citizens in these areas are being urged to drink plenty of fluids, stay in air-conditioned rooms, to stay out of the sun, and to check up on relatives and neighbors.

Areas highlighted in dark orange are under heat advisories (National Weather Service)
Areas highlighted in dark orange are under heat advisories (National Weather Service)

The NWS has also reminded people that young kids and pets should never be left unattended in a vehicle 'under any circumstances'.

During heatwaves like the one currently taking place, people with certain conditions might find that their health worsens when it's hotter. According to experts, there are four conditions in particular that may be impacted.

Heart issues

Exercise physiologist Michael Crawford, ACSM-CEP, explained why people with heart issues may struggle in the heat and how it impacts your heart.

He shared, per the Cleveland Clinic: "Your cardiovascular system really ramps up efforts to radiate heat and cool you down.

Extreme heat is currently impacting several countries (Getty Stock Image)
Extreme heat is currently impacting several countries (Getty Stock Image)

"This makes your heart rate go up and your sweat increase — and that can potentially lead to your blood pressure going down. The longer you’re in the heat, the greater the toll on your heart."

Hot weather can also cause your heart rate to increase higher than usual, leading to a person to experience tachycardia. Sometimes tachycardia can be life-threatening.

Kidney stones

According to Cedars-Sinai urologist Arash Akhavein, MD, people become more at risk of kidney stones when it's hot.

"Dehydration when you’re in drier, hotter climates is a big risk for the formation of stones," said Alhavein. "The more you sweat or lose fluids, the more concentrated your urine becomes."

Dehydration may lead to kidney stones (Getty Stock Image)
Dehydration may lead to kidney stones (Getty Stock Image)

He added: "When urine is too concentrated, it won’t dilute minerals effectively, and those are the conditions under which stones may form."

Gout

Over 12 million Americans are affected by gout (which is a form of arthritis), says VeryWell Health, so they'll have to be extra cautious during the summer months.

Research has suggested that warm and humid weather can lead to increased risk of gout attacks – even if the person is in climate-controlled indoor environments.

"Higher temperatures cause increased sweating, which can lead to dehydration," explains the Gout Education Society.

Warm weather can lead to people experiencing gout flare ups (Getty Stock Image)
Warm weather can lead to people experiencing gout flare ups (Getty Stock Image)

"Dehydration causes uric acid levels to increase, leading to a gout flare."

Headaches

Pressure and temperature changes can lead to head pain, therefore those who are known to suffer with headaches and migraines make be more susceptible to them when it's warmer.

As well as this, the American Migraine Foundation says a third of people who suffer with migraines say that dehydration is a trigger for them.

Bright sunlight can also be a trigger for headaches and may activate light-sensitive migraine pathways.

"The stress of dealing with uncomfortable temperatures also elevates cortisol levels, another known trigger," adds WMC Health.

Dehydration can also trigger headaches and migraines (Getty Stock Image)
Dehydration can also trigger headaches and migraines (Getty Stock Image)

Quick tips for staying cool in high temperatures

The World Health Organization outlines these tips for staying cool when the weather spikes:

  • Avoid going outside and doing strenuous activity during the hottest time of day
  • Stay in the shade - remember that perceived temperatures in the sun can be 10–15 ˚C higher
  • Spend 2–3 hours during the day in a cool place
  • Be aware of the risk of drowning, and never swim alone
  • Stay informed about official heat warnings

As for keeping your home cool, it's recommended to:

  • Use the night air to cool down your home by opening windows after dark when the outdoor temperature is lower than the indoor temperature
  • During the day when outdoor temperatures are higher than indoors, close windows and cover them with blinds or shutters to block direct sunlight.
  • Turn off as many electrical devices as possible
  • Use electric fans only when temperatures are below 40 ˚C / 104 ˚F. In temperatures above 40 ˚C / 104 ˚F, fans will heat the body
  • If using air conditioning, set the thermostat to 27 ˚C / 81 ˚F and turn on an electric fan
  • Remember that it may be cooler outdoors in the shade

Choose your content:

5 hours ago
6 hours ago
  • (Photo by Masashi Hara/Getty Images)
    5 hours ago

    Erling Haaland issues hilarious response after 'ignoring' Tom Holland’s DM request to hang out

    The soccer star had 'no idea' who the actor was when he first reached out

    News
  • Getty Images/Kseniya Ovchinnikova
    5 hours ago

    Vegetarian reveals everything they're eating to avoid the 'explosive diarrhea' parasite sweeping across the US

    She's slowly 'adapting' to her new diet

    News
  • (Photo by Shaun Botterill/Getty Images)
    6 hours ago

    Lionel Messi discovers England goalkeeper's hidden 'cheat sheet' revealing how Argentina's stars take penalties

    Pickford's water bottle had detailed information on his penalty plans for each Argentinian player

    News
  • KKTV 11 Alert News/YouTube
    6 hours ago

    North Dakota hospital faces lawsuit after allegedly 'switching' baby boys at birth over 38 years ago

    Jeremy Morrison had questioned why he doesn't resemble his family

    News
  • Using fans when it hits certain temperature can be dangerous, experts warn
  • What happens to your body when you don't get enough sleep and 'ripple effect' it can lead to
  • Experts warn anyone experiencing symptoms of new Covid variants 'Stratus' and 'Nimbus' to do these four things
  • Experts reveal correct way to brush your teeth to prevent health conditions like dementia and cancer