Rev Up Your Immune System

Not only can exercise reduce our risk of developing heart disease, protect our brain health, and keep our bones strong, but it can do wonders for our immune systems as well. When we exercise, we boost the production of macrophages, important cells that attack viruses and bacteria that can trigger respiratory tract infections.

But, can exercise suppress the immune system? A popular assumption for decades held that exercising vigorously can temporarily suppress immune function. This long-held theory has since been “debunked” by experts in exercise physiology and immunobiology at the University of Bath in the UK. The important thing to remember is that our bodies need time for recovery between workouts to get the maximum benefit.

Try: Citrus Ginger Shake

Supplemental support

Protein powder

A great adjunct to any exercise regimen, protein powders, found at your local natural health store, can include a wide variety of sources, such as whey protein, but plant-based alternatives are many, including pea, rice, hemp, and soy protein.

Branched chain amino acids (BCAAs)

Often used by athletes, post-workout, BCAAs are thought to provide energy for muscles and assist with protein metabolism.

Creatine

As a strength- and power-boosting supplement, creatine is one of the world’s most well-researched, and most popular.

Omega-3s

Among their many health benefits, these healthy fats can also assist in post-workout recovery—they’re found in fish oil supplements or plant-based alternatives like flax oil or seaweed extracts.

Massage

Supporting our immune systems is a happy byproduct of something that also helps reduce stress, rejuvenate muscles, and ease chronic pain. In other words, having a massage doesn’t just make us feel good; it may also pay dividends for our hard-working immune system.

Studies have shown that massage supports our immune system by

• increasing the number, kind, and distribution of lymphocytes (a type of white blood cell) throughout the body, making it less susceptible to disease
• reducing inflammation and edema, which can lower the body’s immune system
• stimulating the brain to release endorphins, producing calm, happy feelings
• decreasing cortisol, a stress hormone that suppresses the immune system

Try: Pear Spinach Smoothie

Supplemental Support

There are different types of massage, ranging from gentle stroking to deeper tissue kneading. It’s a good idea to check with your health care practitioner before beginning a massage treatment if you have blood, vein, or bone problems.

Aromatherapy massage

uses plant-based essential oils on the skin to enhance the healing and relaxing effects of the massage.

Lymphatic massage

concentrates on improving the flow of lymph, a fluid that helps fight off infection and disease.

Shiatsu

uses gentle finger and hand pressure to specific body points to relieve pain and enhance the flow of energy (qi) through the body.

Swedish massage

blends a variety of strokes and pressure techniques for all-over body health.

Alcohol

Evidence indicates that alcohol consumption may have increased during the social isolation invoked during the COVID-19 pandemic. But increasing our intake of alcohol is a serious faux pas when it comes to our immune health.

There’s evidence from both human and animal research that overconsumption of alcohol decreases immune reactivity, reducing the body’s ability to fight infection. The best advice, when it comes to safe alcohol consumption, is to limit yourself.

• Men—3 standard drinks a day on most days; no more than 15 drinks a week.
• Women—2 standard drinks a day on most days; no more than 10 drinks a week.

Try: Green Goddess Smoothie

Supplemental Support

If you’re enjoying a little too much from time to time, you might want to consider some supportive supplements to ensure your immune system isn’t depleted.

Vitamin B12

Studies have shown that even moderate alcohol consumption may decrease the amount of vitamin B12 in our systems.

Probiotics

Because studies have linked alcohol overuse with intestinal inflammation, probiotics may play an important role in maintaining gut health while we enjoy moderate sipping.

Sleep

Sure, we know that if we don’t get enough sleep, we increase our chances of getting sick. And that, if we get sick, lack of sleep affects how long it takes for us to recover. But what exactly is happening to our immune system when we’re sleep deprived?

Our body engages in a wide variety of little-understood and complex processes while we sleep. A group of scientists in Tübingen, Germany, recently published a comprehensive review in the Journal of Experimental Medicine describing the process by which sleep can fight infection through positively impacting how our T cells (specialized immune cells) target virus-infected cells.

Try: Immuni-tea

Supplemental Support 

Good-quality sleep can also contribute to many other aspects of physical and mental well-being. Deficiency is linked to increased risk of heart and kidney diseases, high blood pressure, diabetes, obesity, and stroke as well as stress and mental health. If you’re not getting enough, consider support.

Camomile

The flavonoid, apigenin, in camomile (often consumed as a tea) is said to interact with benzodiazepine receptors in the brain that are involved with the sleep-wake transition.

Glycine

An amino acid that plays a role in the nervous system, glycine supplementation has shown promise in its ability to improve sleep while also promoting less fatigue during the day.

Magnesium

With a reputation as the anti-stress mineral, magnesium can help sleeplessness by calming feelings of nervousness, irritability, and an inability to relax.

Stress

Stress can induce our immune system’s acute phase response (“fight or flight”) that is associated with infections and tissue damage and increase the levels of circulating cytokines to help fight off infection.

This means that short-term stress may boost our immune function. In a study of children starting primary school, those with higher levels of the stress-associated hormone cortisol had fewer colds.  And knee surgery patients who were anxious before surgery were shown to have elevated circulating immune cells in their bloodstream and actually recovered better post-surgery.

But our immune systems can also be seriously stressed by stress, because when it’s constant and long term, the continuous higher levels of pro-inflammatory cytokines dysregulate our immune system. Serious harm to our mental and physical well-being can result, from anxiety and mood disorders to high blood pressure, heart disease, obesity, and diabetes.

Try: Strawberry banana iced green tea smoothie

Supplemental Support

Tackling chronic stress involves a multipronged approach that typically involves re-examining commitments and priorities, in addition to sleep, diet, exercise, and self-care. A number of supplements, depending on your specific needs, can also be helpful.

Green tea

Found in green tea or green tea extracts, L-theanine and epigallocatechin (ECGC) have shown, in research studies, to have positive effects on anxiety reduction as well as on mood and cognition.

Lemon balm

Used for thousands of years, lemon balm is a herb that has shown effectiveness at improving mood, reducing symptoms of anxiety, and increasing calmness and alertness.

Vitamin D

In a recent meta-analysis, researchers found that vitamin D supplementation had positive effects on stress, depression, and sleep, as well as other health biomarkers, in those with psychiatric disorders.

Probiotics

A diverse set of gut flora teaches the immune system to differentiate between friend and foe. Having the right set of gut microbes boosts the activity of immune cells in the gut.

Probiotics also restore the balance of healthy bacteria in your gut. They occur naturally in cultured foods such as sauerkraut, kimchi, and yogurt and in certain fermented drinks like kefir and kombucha. Taking probiotics in either food or supplemental form has been shown to reduce cold frequency by as much as 55 percent, likely due to influence on gut-based immune cells.

Try: Limey Orange Smoothie

Supplemental Support

Probiotic supplements have shown promise in research studies for their role in supporting immune health. Some of the most studied probiotic species include

• Lactobacillus paracasei
• casei
• fermentium
• rhamnosus GG
• plantarum
• reuteri