Health is Wealth
You know exercise builds muscles, strengthens bones, keeps your heart healthy and your mind sharp. But it also does something that you might not think much about: It helps keep your immune system — your internal defenses against infection — in tip-top shape.
If you take time for some physical exertion each day, it helps get your body ready to attack bacteria, viruses and toxins that can sneak in and make you sick.
But how much exercise is effective? Do too little or too much, and it won’t have the best effect on your immune system.
Clinical immunologist Leonard Calabrese, DO, answers common questions about how exercise can impact your immunity and how to use your workouts to shut out a world of would-be invaders.
A: If you exercise moderately on a regular basis, it tunes up the immune system in many ways. It enhances your broad-based defenses against viral infections, such as those causing upper respiratory infections.
Working out regularly also reduces the risk of many chronic diseases such as cardiovascular, respiratory illnesses and metabolic diseases, such as type 2 diabetes.
A: Fortunately, you don’t have to push yourself to the limit to rev up your immune system. In fact, your immune system needs less of a workout than you get with your average cardio routine.
Focus on getting 20-30 minutes of moderate exercise, five days a week, and your immune system will thank you.
A: Moderate exercises, including biking or walking briskly in your neighborhood, are good ways to get your blood flowing. Swimming is also a good option for non-weight-bearing exercise for your joints.
Also try mind-body exercises such as Tai-Chi, Qi Gong and yoga, which are all options that help keep your joints flexible. These exercises also reduce chronic stress, which in itself is a powerful immune booster. These exercises can also help alleviate osteoarthritis and fibromyalgia symptoms.
A: Yes, though, the level to which it can slow your system down is still up for debate.
Research shows that exercising for more than 1.5 hours without refueling your body or giving it enough time to recover suppresses your immune responses for up to a few days. During that time, your cortisol levels rise, your white blood cell count drops and you’re more likely to develop a respiratory infection.
This problem usually affects elite athletes, such as marathon runners, most.
On the flip side, staying sedentary also increases your risk of infection, inflammation and chronic disease.
A: Yes, it can. This is a complex issue, but I like to tell my patients to do a “neck check.” If your symptoms are mostly of a mild cold without fever or lower respiratory symptoms, such as a productive cough, wheezing or shortness of breath, mild exercise can actually reduce congestion and may make you feel better.
If your symptoms are primarily in your lungs or you have a significant fever its better to rest until things settle down. Regardless, good hydration is important.
This recipe switches up chicken marsala by swapping in salmon. It’s a great way to get delicious and healthy fish on the menu. You should be able to find Marsala wine in the cooking wines or condiments section of your local grocery store.
Makes 4 servings
Calories: 450
Fat: 12 g
Fiber: 9 g
Sodium: 147 mg (doesn’t include the optional salt)
Carbohydrates: 44 g
Protein: 37 g
— Recipe courtesy of Speaking of Women’s Health.
A modest uptick in the amount of fruit and vegetables you eat can help ward off type 2 diabetes, according to a study published online July 8, 2020, by The BMJ. From a much larger study involving some 340,000 people from eight European countries, scientists selected 9,754 participants who were newly diagnosed with diabetes over a decade. Researchers compared the fruit and vegetable intakes of these people to those of about 13,000 participants who remained diabetes-free during the study period. Researchers also measured blood levels of seven key plant-derived nutrients, including vitamin C and brightly colored antioxidant pigments called carotenoids. People with the highest intakes of fruit and vegetables and the highest blood levels of the plant-derived nutrients were 25% to 50% less likely to get diabetes during the study period, compared with those who ate the least of these food groups or had the lowest nutrient levels. Even better, it didn’t take a whole lot of extra green, red, yellow, and orange on the plate to make a dent in diabetes risk. The equivalent of only two-thirds of a medium apple or just over one-third of a cup of mixed fruit each day offered protection.
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World Health Day, celebrated on 7 April 2025, will kick off a year-long campaign on maternal and newborn health. The campaign, titled Healthy beginnings, hopeful futures, will urge governments and the health community to ramp up efforts to end preventable maternal and newborn deaths, and to prioritize women’s longer-term health and well-being.
WHO and partners will also share useful information to support healthy pregnancies and births, and better postnatal health.
Visit the World Health Day 2025 campaign page
This task is critical. Tragically, based on currently published estimates, close to 300 000 women lose their life due to pregnancy or childbirth each year, while over 2 million babies die in their first month of life and around 2 million more are stillborn. That’s roughly 1 preventable death every 7 seconds.
Based on current trends, a staggering 4 out of 5 countries are off track to meet targets for improving maternal survival by 2030. 1 in 3 will fail to meet targets for reducing newborn deaths.
Women and families everywhere need high quality care that supports them physically and emotionally, before, during and after birth.
Health systems must evolve to manage the many health issues that impact maternal and newborn health. These not only include direct obstetric complications but also mental health conditions, noncommunicable diseases and family planning.
Additionally, women and families should be supported by laws and policies that safeguard their health and rights.
Here’s what you can do to support the campaign:
HSE Dublin South, Kildare & West Wicklow
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Motherhood is a journey filled with love, but at times can be isolating. Join our campaign to combat loneliness in motherhood and help create a supportive community where every mum feels connected. Visit http://themotherhoodprogramme.ie
A salad combination you may not have thought of, but will now be hooked on
This salad is a perfect addition to a large dinner menu when you have guests over for dinner and have a lot of other dishes to prepare. It’s bright and flavorful, and you can make the dressing a day or two ahead to prep!
Dressing
1 1/2 cups frozen raspberries, thawed
2 to 4 tablespoons orange juice (depending on thickness desired)
1 tablespoon white wine vinegar
1 teaspoon sugar
1 tablespoon orange zest
4 tablespoons chopped fresh chives
Salad
1 pound romaine lettuce, washed, dried and torn into bite-sized pieces
1 pound radicchio, washed, dried, shredded
3 carrots, peeled and grated
1 cup mandarin oranges, drained, patted dry
20 cherry tomatoes, quartered
Calories: 107
Total fat: 0.5 g
Saturated fat: 0.1 g
Protein: 3 g
Carbohydrate: 25 g
Fiber: 5.4 g
Sodium: 37 mg
—Recipe developed and copyrighted by Kristine Napier, MPH, RD, LD.
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These podcasts are available to listen to free of charge, with a continuing education (CE credit) option available* for $10.
“Wellness Coach Training: Podcast Pairing: Healthy Aging with Exercise and Bone Health” Now through 9/30/2028
