Extreme heat: Staying safe if you have health issues

Given the unprecedented heat waves we’ve endured this summer, I’m often asked whether being outside is safe. There is good reason to wonder. Climate change caused by burning fossil fuels has made dangerous, sometimes deadly heat waves increasingly common around the globe. In recent years more than a third of all heat-related deaths in the US and worldwide have been attributed to climate change. In the US alone, heat is responsible for an estimated 5,600 deaths annually.

So, what temperatures warrant caution, especially if you have a chronic health condition such as asthma, heart disease, or diabetes? I wish I could pinpoint the range precisely for the families I care for, but we need to invest in learning more so we can provide sound advice on keeping safe in the heat, especially for people with chronic health conditions. We do know this: any chronic medical condition is a problem in the heat. Here’s what you need to know to stay safe.

Which health conditions require special attention when heat rises?

Most of us know someone who is at risk from too much heat. The elderly, and anyone taking medicine that affects the body’s ability to hold onto water, such as diuretics, may be more vulnerable to heat illness. If you have any of the following conditions, it’s important to be cautious during days with extreme heat.

  • Heart disease: Heat may increase the chances of heart attacks, heart arrhythmias, and heart failure.
  • Asthma: Anyone with asthma, especially children, may find it more difficult to breathe on hot days. Some evidence suggests that inhalers stored in extreme heat may not work as well, possibly dispensing less than a full dose of medication.
  • Lung conditions: Heat can irritate the lungs, causing flare-ups for adults who smoke, or have asthma or chronic obstructive pulmonary disease (COPD) — even for those spending most of their time indoors. Heat also increases ozone air pollution and the risk of dehydration, both of which can make breathing more difficult.
  • Mental health: There’s strong evidence of more instances of suicidehomicide, and violent crime on extremely hot days. Heat may also influence symptom severity in people with mood disorders and schizophrenia.
  • Diabetes: People who have type 1 or type 2 diabetes have a harder time regulating body temperature and blood glucose when it gets hot out. Extreme heat can also damage insulin, insulin pumps, and glucose monitors.
  • Pregnancy: Higher temperatures and air pollution may increase the risk that a baby is born too early or with a low birthweight.

Extreme heat can disturb the balance of essential minerals in the blood known as electrolytes for many people with chronic illnesses (especially of the heart and kidneys) or diabetes. When this occurs, a person may feel fatigue, nausea, or a headache. In extreme instances, heart attack, irregular heart rhythms (arrhythmia), or problems with other organs may occur. Data from millions of people enrolled in Medicare show that hospital admissions during heat waves lasting two or more days are most often due to heat stroke, sunstroke, fluid and electrolyte imbalances, and acute kidney failure. Among older adults, heightened risk for hospital admission lasted up to five days after the hottest day.

Developing a personal cooling plan

Keep it simple: learn how to avoid, spot, and treat heat-related illness, the Centers for Disease Control and Prevention advises. Right now, we do not have sufficient evidence to recommend actions like changing medication regimens, or staying indoors at certain temperatures and not others. But you can talk to your doctor about your situation, and take steps to take control of your health when it’s hot outside.

  • Make a plan now for staying cool at home or going to a neighborhood cooling center. Don’t wait for a heat alert to take action if you have a chronic health problem or take multiple medicines. Your risk of getting sick from the heat may increase at temperatures below when heat alerts are often called, or sometimes when heat alerts aren’t called at all.
  • Look at a weather forecast first thing in the morning and pay attention to days that are hotter than usual for where you live — and especially to how being outside on those days may affect your health.
  • If your symptoms are already flaring on days when it will be hot outside, you’ll need to be more cautious about going out. If you do go outside, try to stay in the shade. Stay alert to how you’re feeling and find a cool place inside if you feel symptoms arise.
  • Stay hydrated by drinking water and drinks that replenish electrolytes. Some sports drinks have electrolytes but may have lots of sugar. That can be a problem for people with diabetes, so read labels carefully.

The bottom line

Climate change makes it likely we will experience longer and hotter heat waves. If you have existing health conditions, take steps now to protect your health. Talk to your doctor about how heat might affect you, and decide on a plan to help you stay cool. Staying informed and attuned to any symptoms you experience will help.

Bible verses for today’s meditation and inspiration: Matthew E. McLaren

2 Corinthians 13:9 For we rejoice when we ourselves are weak but you are strong; this we also pray for, that you be made complete.

Colossians 1:28 We proclaim Him, admonishing every man and teaching every man with all wisdom, so that we may present every man complete in Christ.

Colossians 4:12 Epaphras, who is one of your number, a bondslave of Jesus Christ, sends you his greetings, always laboring earnestly for you in his prayers, that you may stand perfect and fully assured in all the will of God.

2 Corinthians 10:15-16 not boasting beyond our measure, that is, in other men’s labors, but with the hope that as your faith grows, we will be, within our sphere, enlarged even more by you, so as to preach the gospel even to the regions beyond you, and not to boast in what has been accomplished in the sphere of another.

2 Thessalonians 1:3 We ought always to give thanks to God for you, brethren, as is only fitting, because your faith is greatly enlarged, and the love of each one of you toward one another grows ever greater;

2 Peter 3:18 but grow in the grace and knowledge of our Lord and Savior Jesus Christ To Him be the glory, both now and to the day of eternity. Amen.

Ephesians 1:17-18 that the God of our Lord Jesus Christ, the Father of glory, may give to you a spirit of wisdom and of revelation in the knowledge of Him. I pray that the eyes of your heart may be enlightened, so that you will know what is the hope of His calling, what are the riches of the glory of His inheritance in the saints,

Ephesians 3:16-19 that He would grant you, according to the riches of His glory, to be strengthened with power through His Spirit in the inner man, so that Christ may dwell in your hearts through faith; and that you, being rooted and grounded in love, may be able to comprehend with all the saints what is the breadth and length and height and depth, read more

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