6 surprising, scientifically-backed ways to cool down quickly during a heat wave
Some of this advice may seem counterintuitive, but it may help you beat the heat.
Heat waves are hitting across the globe, and getting worse every year.
Phoenix is known for its scorching hot summers, with temperatures sitting at or above 100 degrees for much of the season. But even those seasoned by the Sonoran sun are struggling with nearly three weeks straight of high temps over 110 degrees, with overnight lows not dipping below 90 degrees for days on end.
(Having lived in the Valley of the Sun myself, I can attest that, yes, there is a significant difference between 100 and 110 degrees. At 100, you can still legitimately pull the "But it's a dry heat!" card. Over 110 is just miserable, not to mention dangerous.)
The Southwest isn't the only place experiencing record heat. The Lower Mississippi Valley and Florida are feeling it, and globally we're seeing parts of Europe and Asia breaking their own heat records as well.
With the globe predictably heating up due to climate change, there doesn't appear to be much end in sight for extra-oppressive heat waves. So aside from taking the necessary steps to curb climate change, we have to focus on how to cool ourselves down. There's a lot of conflicting advice out there, but here are some scientifically-backed ways to cool your body down quickly, especially if you don't have air conditioning or access to a pool or lake or river nearby.
1. Focus on cooling your hands and feet.
Everyone seems to have a different body part to focus on first for the quickest cool-down—your face, your neck, your wrists, etc.—but according to Professor Mike Tipton from the Extreme Environments Laboratory at the University of Portsmouth, the hands are where it's at.
"Your hands have a high surface area to mass area—they have lots of blood flowing in them when you’re hot. If your core temperature is hot, your body will send blood to the extremities in order to lose heat,” Tipton told Science Focus.
“Immersing your hands in cold water won’t feel as nice, but it’ll cool you much faster than even an ice bath! It’s so important to make a distinction between things that make you feel cooler and things that actually make you cooler.”
Cooling your feet works for the same reasons. We have lots of blood flow to our feet, so immersing them in cool water (not ice water, as that causes the blood vessels to constrict and reduce blood flow) can help cool you down quickly.
2. Try drinking hot liquids.
Yes, drinking cold drinks feels amazing when you're hot, but some experts say hot drinks can actually do more to help your body's natural cooling system work more efficiently. Ollie Jay, a researcher at the University of Ottawa’s School of Human Kinetics, explains why.
“What we found is that when you ingest a hot drink, you actually have a disproportionate increase in the amount that you sweat,” Jay told The Smithsonian. “Yes, the hot drink is hotter than your body temperature, so you are adding heat to the body, but the amount that you increase your sweating by—if that can all evaporate—more than compensates for the added heat to the body from the fluid.”
The one caveat is that the increased sweat has to have someplace to evaporate, so take humidity levels into consideration.
“On a very hot and humid day, if you’re wearing a lot of clothing, or if you’re having so much sweat that it starts to drip on the ground and doesn’t evaporate from the skin’s surface, then drinking a hot drink is a bad thing,” Jay added. “The hot drink still does add a little heat to the body, so if the sweat’s not going to assist in evaporation, go for a cold drink.”
3. Try some spicy foods, too.
Have you ever noticed that tropical places often have the spiciest foods? There are several theories for why that is, but one of them may be that spicy foods can actually help you stay cool.
Similarly to drinking hot beverages, eating spicy food makes you sweat, and sweat is the body's main cooling system. (Again, though, the effectiveness of this approach depends on your sweat being able to evaporate, so you may not benefit from your mouth burning if you're in a very hot and humid climate.)
4. Ditch the fan if it's extremely hot AND extremely dry or humid.
Fans can provide a nice breeze to help you cool down, but many public health agencies have recommended against using fans above 95 degrees F (35 degrees C).
However, Ollie Jay and 12 colleagues published a study in 2021 that found humidity levels make a difference in whether fans are actually effective for cooling in extremely high temperatures. Essentially, if temps are extreme and conditions are very dry or very humid, fans can make things worse. But as Science Alert points out, those conditions are not the norm in most places. When humidity is moderate, the temperature at which fans are effective can be higher than 95 degrees.
"[T]here are many locations on Earth where fan use could be safely recommended as an alternative to air conditioning all of the time despite air temperature exceeding the currently recommended threshold of 35 °C," the authors wrote.
(However, it is important to note that fans increase the risk of dehydration, so always make sure you're drinking plenty of fluids. And for older adults, fan use is not as effective as it is for younger people and can actually result in raising their body temperatures. So it's important that elderly folks and their caregivers follow heat guidance specifically for older adults.)
5. Just say no to the cold beer—or any alcoholic or caffeinated beverage
Cracking open a cold one may sound incredibly refreshing when you're sweltering, but alcohol and heat actually make poor bedfellows. That's because alcohol actually dehydrates you. Same goes for caffeine. And the fact that they are liquids is especially deceptive because they give you a false sense of hydration.
“If you’re drinking a lot of beer or alcoholic seltzer, it can feel like you’re taking in a lot of liquid and staying hydrated,” registered dietitian Julia Zumpano, RD, LD, tells the Cleveland Clinic. “But the alcohol offsets that because of the dehydrating factor.”
(If you're interested in the biological reason for alcohol being dehydrating, it reduces the release of vasopressin, an antidiuretic hormone (ADH) that works with your kidneys to keep your body fluids balanced. Alcohol is also a diuretic, which means it increases the fluid being pulled out of your body as urine.
Hydration is key to making it through a heat wave, so drink aplenty, but make it water. (And start hydrating early in the day. Keeping water near you at all times and continually drinking throughout the day will go a long way toward preventing heat illness.)
6. Try dabbing on some peppermint oil
I know, I know. Essential oils are quack cures and whatnot. But in this case, even though it doesn't drop your core temperature, there really is a scientific basis for topical peppermint oil making you temporarily feel cooler.
Menthol, the primary ingredient in peppermint oil, has been shown to induce a cooling sensation. If you've ever sucked on a menthol cough drop, you know the feeling. Peppermint oil creates a similar sensation on the skin, which can provide some psychological relief from the heat, even if it's not actually reducing your body temperature.
In one study, a menthol gel was found to have a longer cooling effect than either ice or a placebo gel on healthy males. But anecdotally, a few dabs of peppermint oil on my wrists, neck and inside my elbows provides some instant cooling relief on very hot days. When it's brutally hot outside, any bit of relief helps.
There are plenty more tips for beating the heat, from wearing light-colored clothing to avoiding strenuous activity, but the big takeaway from this list is helping our body's built-in cooling system work as well as it possibly can during extreme heat.
For more information about the dangers of heat waves and how to prevent heat illness, check out the American Red Cross extreme heat safety tips here.
Our mouths loves chips. Our bodies not so much.Photo by 
You can eat well without giving up sweets completely.Photo by 
12 non-threatening leadership strategies for women
We mustn't hurt a man's feelings.
Men and the feels.
Note: This an excerpt is from Sarah Cooper's book, How to Be Successful Without Hurting Men's Feelings.
In this fast-paced business world, female leaders need to make sure they're not perceived as pushy, aggressive, or competent.
One way to do that is to alter your leadership style to account for the fragile male ego.
Should men accept powerful women and not feel threatened by them? Yes. Is that asking too much?
IS IT?
Sorry, I didn't mean to get aggressive there. Anyhoo, here are twelve non-threatening leadership strategies for women.
Encourage.
With permission from Sarah Cooper.
When setting a deadline, ask your coworker what he thinks of doing something, instead of just asking him to get it done. This makes him feel less like you're telling him what to do and more like you care about his opinions.
Sharing ideas.
With permission from Sarah Cooper.
When sharing your ideas, overconfidence is a killer. You don't want your male coworkers to think you're getting all uppity. Instead, downplay your ideas as just "thinking out loud," "throwing something out there," or sharing something "dumb," "random," or "crazy."
Email requests.
With permission from Sarah Cooper.
Pepper your emails with exclamation marks and emojis so you don't come across as too clear or direct. Your lack of efficient communication will make you seem more approachable.
Idea sharing.
With permission from Sarah Cooper.
If a male coworker steals your idea in a meeting, thank him for it. Give him kudos for how he explained your idea so clearly. And let's face it, no one might've ever heard it if he hadn't repeated it.
Sexism.
With permission from Sarah Cooper.
When you hear a sexist comment, the awkward laugh is key. Practice your awkward laugh at home, with your friends and family, and in the mirror. Make sure you sound truly delighted even as your soul is dying inside.
Mansplain.
With permission from Sarah Cooper.
Men love explaining things. But when he's explaining something and you already know that, it might be tempting to say, "I already know that." Instead, have him explain it to you over and over again. It will make him feel useful and will give you some time to think about how to avoid him in the future.
Mistakes.
With permission from Sarah Cooper.
Pointing out a mistake is always risky so it's important to always apologize for noticing the mistake and then make sure that no one thinks you're too sure about it. People will appreciate your "hey what do I know?!" sensibilities.
Promotions.
With permission from Sarah Cooper.
Asking your manager for a promotion could make you seem power- hungry, opportunistic, and transparent. Instead, ask a male coworker to vouch for you. Have your coworker tell your manager you'd be great for the role even though you don't really want it. This will make you more likely to actually get that promotion.
Rude.
With permission from Sarah Cooper.
Sometimes not everyone is properly introduced at the start of a meeting. Don't take it personally even if it happens to you all the time, and certainly don't stop the meeting from moving forward to introduce yourself. Sending a quick note afterward is the best way to introduce yourself without seeming too self-important.
Interruptions.
With permission from Sarah Cooper.
When you get interrupted, you might be tempted to just continue talking or even ask if you can finish what you were saying. This is treacherous territory. Instead, simply stop talking. The path of least resistance is silence.
Collaboration.
With permission from Sarah Cooper.
When collaborating with a man, type using only one finger. Skill and speed are very off-putting.
Disagreements.
With permission from Sarah Cooper.
When all else fails, wear a mustache so everyone sees you as more man-like. This will cancel out any need to change your leadership style. In fact, you may even get a quick promotion!
In conclusion...
With permission from Sarah Cooper.
Many women have discovered the secret power of non-threatening leadership. We call it a "secret power" because no one else actually knows about it. We keep our power hidden within ourselves so that it doesn't frighten and intimidate others. That's what makes us the true unsung heroes of the corporate world.
About the Author: Sarah Cooper
Sarah Cooper is a writer, comedian, and author of 100 Tricks to Appear Smart in Meetings. Her new book, How to Be Successful Without Hurting Men's Feelings, is out now.
The comedic book cover.
With permission from Sarah Cooper.
A satirical take on what it's like to be a woman in the workplace, Cooper draws from her experience as a former executive in the world of tech (she's a former Googler and Yahooer). You can get the book here.
This article was originally published on March 25, 2019.