Beating the Heat: A Diabetic's Guide to Staying Cool at Work
Hey everyone,
Summer's here, and for many of us, that means dealing with rising temperatures, especially when our jobs keep us outdoors or in less-than-ideal environments. As a Type 2 diabetic, I have to be extra vigilant about heat exposure, and my work setup in the Las Vegas area presents some unique challenges. My lock repair workbench is in the back of my work van, which can hit a sweltering 140 degrees Fahrenheit in the summer. That's literally the temperature where you're warned not to leave kids or pets! So, taking heat exposure seriously is a must.
I've developed a routine and a few strategies to help me mitigate heat exposure and monitor my health. Here’s what works for me:
Hydration is Key (and Delicious!)
First things first: hydration. Every morning, I aim to drink about a quart of water. To this, I add my own electrolyte mix:
1/8 teaspoon potassium citrate
1/4 teaspoon Himalayan sea salt
1 teaspoon regular table sugar
For flavor, I use about half a packet of True Lemon's strawberry lemonade mix – just something to encourage me to keep sipping! I try to drink about a liter of this before work and another liter throughout the day if I'm feeling dehydrated. My daily goal is to drink at least a gallon of water, sometimes more, depending on the heat. And i'm avoiding all the artificial additives by making my own !
Please note: This is my personal recipe and not medical advice. Always consult with your healthcare provider before making changes to your hydration or health regimen.
Cooling Down with Evaporative Magic
My work van has a fan and I can open the doors, but the AC doesn't work well when the vehicle is stationary. This is where a unique desert solution comes in handy. Given Las Vegas's low humidity (often under 10%), evaporative cooling is incredibly effective.
I use a
cooling vest from Techniche. You simply dunk it in water, wring it out, and put on the wet vest. As the water evaporates, it draws heat away from your body. With a slight breeze or the fan in my van, it works wonders!
Just remember, these vests are most effective in low humidity environments; their cooling power decreases as humidity rises.
Monitoring Your Health: Beyond Thirst
As a Type 2 diabetic on GLP-1 medications like Mounjaro, and Blood Pressure Medications can affect my body's perception of hunger and thirst can sometimes be unreliable. This means I can't always trust my natural sensations to tell me if I'm dehydrated. To stay on top of my hydration, I use a few tools:
Masimo MightySat Fingertip Pulse Oximeter: This device measures something called Pleth Variability Index (PVI). If my PVI goes above 24, it's a strong indicator of dehydration, and I know I need to take in fluids. It's a bit of an investment but very portable and accurate. Interestingly, mountain climbers also use this to monitor hydration at high altitudes.
Urine Test Strips for Specific Gravity: A simpler, more accessible method is using urine test strips that measure specific gravity. You just dip the strip into a urine sample, and the color change on the pad indicates your hydration level against a chart. While not strictly necessary for healthy individuals, it's a great tool if you're concerned about working in hot environments.
Urine Color: Try to stay hydrated enough so that your urine color is light yellow to clear, make sure your urinating at least once every two hours. Remember: Pee Brown = Your Going Down !
Proactive Steps and Workplace Safety
Heat is a serious concern. It's the number one killer worldwide for workplace exposure. This is no laughing matter and requires proactive measures. Here are some essential tips:
Regular Breaks: Take frequent rest breaks in the shade or a cooler area.
Hydrate Consistently: Don't wait until you're thirsty; sip water regularly.
Workplace Resources: Advocate for your HR department to provide cooling solutions like fans or even misting fans if your job site doesn't have them.
Know Your Rights: Always ensure your workplace is compliant with local regulations like OSHA in the United States. In Nevada, for instance, new laws require employers to provide adequate hydration and shade for workers exposed to heat stress, along with monitoring programs.
Electrolyte Smarts and Emergency Hydration
While I make my own mix, commercially available electrolyte mixes like Liquid IV(TM) or Oral Rehydration Salts are great options. If you're watching sugar intake, sugar-free versions of popular sports drinks like Gatorade™ and Powerade™ are also available. However, you do need a small amount of sugar to assist your stomach in absorbing electrolytes effectively, so don't be afraid to utilize a little bit of sugar if necessary, but it doesn't need to be a whole lot.
In an emergency, if you need to rehydrate quickly and don't have commercial products, you can find simple recipes for oral rehydration solutions online. These are often used in developing countries for children with gastrointestinal issues, and they are incredibly effective at keeping you hydrated.
Monitoring Your Heart Rate in the Heat
Another smart trick I use is an inexpensive
athletic heart rate monitor. I wear the
Cospo HW9 arm monitor (it's under $50 when on sale and lasts all day!), which connects via Bluetooth to an app on my phone like Pulse Ranger or Heart Graph.
As your body heats up, your heart rate increases because your blood vessels dilate, putting extra strain on your heart.I can set an alarm on the app to go off when my heart rate exceeds a certain percentage of my maximum heart rate (e.g., 65-70%). This serves as a warning that my body is working harder to accommodate the heat, prompting me to cool down and rehydrate. Some monitors even have built-in LEDs or vibrating motors that can alert you directly, so you don't always need to check your phone.
A heart rate monitor can be a valuable tool for monitoring the effects of heat stress, offering a real-time, personalized window into your body's physiological response to high temperatures.
By tracking your heart's activity, you can gain crucial early warnings of developing heat-related illness, often before you consciously recognize the symptoms.
When your body is exposed to heat, it initiates a series of physiological changes to maintain a stable internal temperature. A primary cooling mechanism is to increase blood flow to the skin, allowing heat to dissipate into the environment. This process, however, places a significant demand on your cardiovascular system.
Your heart is forced to beat faster and pump more blood to meet this demand, leading to a noticeable increase in your heart rate. This elevated heart rate is a key indicator of the strain heat is putting on your body. Dehydration, a common consequence of prolonged heat exposure and sweating, further exacerbates this strain by reducing blood volume, making the heart work even harder.
How a Heart Rate Monitor Can Help:
A heart rate monitor provides objective, quantifiable data on this cardiovascular strain. Instead of relying solely on subjective feelings of thirst or fatigue, which can be unreliable indicators, a heart rate monitor offers concrete metrics to gauge your level of heat stress.
Here's how different types of heart rate data can be interpreted:
Elevated Resting Heart Rate: Even before you begin any physical activity, your resting heart rate may be higher than normal in a hot environment. This is an early sign that your body is already working to cool itself down.
Disproportionate Heart Rate Increase During Activity: During exercise or physical labor in the heat, your heart rate will climb higher and faster than it would under cooler conditions for the same level of exertion. A heart rate monitor allows you to see this exaggerated response and adjust your activity level accordingly.
Heart Rate Variability (HRV): Some advanced heart rate monitors can track Heart Rate Variability, which is the variation in time between each heartbeat. A decrease in HRV can indicate that your body's autonomic nervous system is under stress, a common physiological response to heat.
Stages of Heat Stress Detectable by Heart Rate Monitors:
Research suggests that there is a predictable progression of cardiovascular strain during heat stress that can be detected by monitoring your heart rate:
Early Stage: A subtle increase in heart rate with minimal impact on performance.
Moderate Stage: A more significant elevation in heart rate accompanied by a noticeable decline in performance.
Advanced Stage: Your heart rate approaches its maximum, regardless of your effort level.
Critical Stage: In severe cases, your heart rate may become erratic or even suddenly drop, which is a dangerous sign of impending heat exhaustion or heatstroke.
By paying attention to these changes, you can take proactive steps to mitigate the effects of heat stress, such as seeking shade, hydrating, and reducing your activity level, well before more serious symptoms like dizziness, nausea, or confusion set in.
Choosing and Using a Heart Rate Monitor:
For the most accurate readings, especially during physical activity and heavy sweating, a chest strap heart rate monitor is generally considered the gold standard. While wrist-based monitors are more convenient, their accuracy can sometimes be affected by sweat and movement.
To effectively use a heart rate monitor for heat stress, it's beneficial to establish a baseline understanding of your normal heart rate responses in cooler temperatures. This will allow you to more easily identify significant deviations when you are exposed to heat.
In conclusion, a heart rate monitor is more than just a fitness gadget; it can be a crucial safety device in hot environments. By providing a direct measure of your body's internal strain, it empowers you to make informed decisions to protect your health and well-being when the temperature rises.
Essential Tools for Monitoring Your Temperature Exposure
Working or even just spending leisure time outdoors in the heat can be a serious health risk. As temperatures rise, it becomes crucial to monitor your personal heat exposure to prevent heat-related illnesses. Fortunately, modern technology offers accessible and effective tools to help you stay safe. Here’s a look at two powerful options for keeping a close eye on the temperature.
For a convenient and free solution, look no further than the NIOSH/OSHA Heat Safety Tool app, available for both iPhone and Android devices. Developed collaboratively by the National Institute for Occupational Safety and Health (NIOSH) and the Occupational Safety and Health Administration (OSHA), this app is an invaluable resource for anyone who spends time in the heat.
The app utilizes your phone's GPS to access your micro-area weather forecast, providing you with a real-time heat index. The heat index is a measure of how hot it really feels when relative humidity is factored in with the actual air temperature. Based on this data, the app displays the current risk level for heat exposure and offers clear, actionable advice on how to mitigate the dangers. This can include recommendations for rest breaks, hydration, and recognizing the signs of heat stress.
One of its most practical features is the hourly forecast, which allows you to plan your activities around the coolest parts of the day, minimizing your exposure during peak heat. It's a great tool for daily checks and for planning ahead to ensure your safety in hot conditions.
The Kestrel Drop D3: Your Personal Temperature Logger
For a more personalized and precise measurement of your direct heat exposure, a dedicated device like the
Kestrel Drop D3 Micro Temperature/Humidity Logger is an excellent investment. This small, durable logger can be conveniently clipped onto your belt or bag, recording your personal temperature and humidity exposure in one-minute increments throughout the day.
The Drop D3 wirelessly connects to your smartphone via Bluetooth, allowing you to monitor your real-time data and review your exposure history through the accompanying app. A standout feature is the ability to set custom alerts. For instance, you can program the device to notify your phone when the temperature surpasses a specific threshold, such as 110°F. This immediate alert system provides a critical warning, prompting you to take immediate action to cool down.
By logging your personal exposure, the Kestrel Drop D3 offers a more accurate picture of the conditions your body is actually experiencing, which can differ significantly from the general weather forecast, especially when moving between sun and shade or in areas with varying airflow. This detailed data can be invaluable for understanding your personal tolerance to heat and for making informed decisions to protect your health.
Remember, as a Type 2 diabetic, our bodies don't cool as effectively, and we need to be extra careful about circulatory and cardiac issues. Proactive hydration, cooling, and diligent monitoring are crucial to staying safe and healthy when working in the heat.
Stay cool and stay safe out there!