The body’s defense against harmful invaders like bacteria, viruses, parasites, and fungi is provided by the immune system, a complex network of cells, tissues, and organs. The immune system’s primary elements are as follows:
White blood cells (WBCs), also referred to as leukocytes, are in charge of identifying and combating invading foreign organisms. WBCs come in a variety of forms, such as T cells, B cells, and natural killer cells.
B cells produce antibodies, which are protein molecules, in response to a pathogen invasion. By attaching to particular proteins on pathogens’ surfaces, antibodies can neutralise or eliminate them.
The complement system is a collection of proteins that collaborate to improve the capacity of antibodies and other immune system components to eliminate pathogens.
The lymphatic system, a network of blood vessels and organs that includes the lymph nodes, spleen, and thymus, aids in the removal of waste products and foreign invaders from the blood.
Pathogens that are inhaled are filtered out by the tonsils and adenoids, which are lymphatic tissue collections found in the throat and nasal passages, respectively.
The soft, spongy tissue in the middle of bones called bone marrow is where new immune cells are created.
The immune system also has a memory, which enables it to identify and react to a pathogen more quickly if it is subsequently encountered. In order to allow the immune system to develop immunity to the real thing, vaccines introduce a pathogen into the body in a weakened or inactivated form.
Oranges – Any time of year, oranges are very healthy for you. Every type of orange contains more than 100% of the recommended daily allowance of vitamin C, which strengthens the immune system. But it’s not just that: According to WebMD, vitamin C can also stop cell deterioration, promote collagen synthesis, and even lower blood pressure and levels of the stress hormone cortisol. Frequency is important when it comes to fruits’ ability to fend off or lessen the likelihood of catching a cold. Make oranges a staple in your diet
Grapefruits – Grapefruits are a fantastic source of vitamin C, just like oranges are. Additionally, they contain a sizable amount of fibre and vitamin A, which helps to maintain both your immune system and your vision. Half a grapefruit only contains 52 calories on average, and since they are 88 percent water, they help you stay hydrated and feel satisfied. Additionally, avoid overdoing it on oranges by varying your citrus! However, be aware that grapefruit contains a substance that may prevent some medications, particularly those based on statins, from being properly absorbed. If you are currently taking any medications, ask your doctor or pharmacist.
Blueberries – Blueberries, which are low in calories and delicious to eat by the handful, contain natural antihistamines that can help reduce inflammation and the symptoms of allergies, such as a runny or stuffy nose that can be troublesome during the cold and flu season. Flavonoids, which improve your overall health and can help you feel spry during these chilly winter months, are abundant in antioxidants that keep you healthy.
Apples – Apples are excellent sources of fibre and unrefined sugars, but you already knew that. You might be surprised to learn that apple skins contain quercetin, a type of flavonoid plant pigment that supports a healthy immune system and reduces inflammation. The saying “an apple a day keeps the doctor away” is true! Eat the fruit whole, including the peel and all of its phytonutrients.
Pears – You may not be aware, but pears contain vitamin C. Their peels also contain anti-inflammatory flavonoids in addition to a lot of fibre and potassium, so be sure to eat the skin for the maximum nutrient boost.