1 What effect do large indoor plants have on building spaces?
- They trap heat near the walls
- They dry the air to reduce humidity
- You can make the rooms feel cold
Large plant systems release water vapor into the air, which improves humidity and makes indoor spaces feel cooler and more comfortable. Learn more.
- They block outside light
2 Which condition is most likely to cause an oxygen supply imbalance associated with heart failure in young women?
- Anemia
Anemia reduces oxygen supply and contributes to imbalances that strain the heart, especially during times of illness or physical stress. Learn more.
- Arthritis
- Migraine
- Eczema
3 How does molecular hydrogen help protect mitochondria from oxidative stress?
- By thickening the cellular membranes
- Helping to restore the power of the mobile phone
Molecular hydrogen can support mitochondrial function by reducing oxidative stress, which helps cells produce energy more efficiently. Learn more.
- Blocking all signs of fatigue
- By increasing body temperature
4 What explains the long-term increase in heart disease in the 20th century?
- Seed oils first became common
Heart disease has been on the rise for years after seed oils became common in the food supply, which is linked to plaque that slowly builds up in blood vessels over time. Learn more.
- Exercise changed overnight
- Doctors have found many cases early
- Smoking has ended in most homes.
5 What is the main reason for rising health care costs?
- Additional medical services are used
An increase in medical services is the biggest driver. Daily choices around food, sleep, and activity can shape how often care is needed. Learn more.
- Doctors are working a few hours
- Few people have insurance.
- Hospital buildings are old
6 What Diet Can Shorten Your Peakspan?
- High protein diet
- Low-carb diet
A low-carb diet can limit the body’s primary source of energy. The guidelines here suggest 250 grams of healthy carbohydrates per day, adjusted higher for active people. Learn more.
- Fruit-based diet
- Low-salt diet
Test your knowledge here.
1 Dimethyl sulfoxide (DMSO) was first discovered in which decade?
- 1960s
Dimethyl sulfoxide (DMSO) was discovered in the 1960s and quickly attracted a lot of attention as it was used in many difficult-to-treat conditions. Learn more.
- 1970s
- 1980s
- 1990s
2 Which of the following does not aggravate breathing problems such as asthma?
- Cigarette smoke
- Indoor mold
- Road exposure
- Steam from the diffuser
Smoke, mold, and rodents can irritate the lungs or cause allergic reactions, but diffusion vapors pose no health risks. Learn more.
3 What do you call the active compound in apple cider vinegar?
- Acetic acid
Acetic acid improves insulin sensitivity and helps the body burn more glucose after a meal, reducing how much fat is stored. Learn more.
- malic enzyme
- Latic fiber
- Citric extract
4 In the year In the 1950s, which corticosteroids were used to treat inflammatory and autoimmune diseases?
- Penicillin and streptomycin antibiotics
- Insulin and metformin blood sugar medications
- Prednisone and hydrocortisone corticosteroids
Corticosteroids reduce inflammation and stabilize the body’s immune system, helping to control autoimmune and inflammatory diseases such as lupus and multiple sclerosis. Learn more.
- Aspirin and acetaminophen pain relievers
5 What can lead to treatment that does not address the underlying cause of heart disease?
- Hospital transportation is delayed
- Misclassification of arterial tears
Labeling arterial tears as plaque-related events can lead to incorrect treatment, monitoring, and prevention planning. Learn more.
- Low blood sugar readings
- Mild chest discomfort
6 Which of the following is NOT a hernia surgery?
- Open surgery
- Minimally invasive surgery
- Laparoscope repair
- Surgical mesh
Mesh is a material used for some repairs, not a surgical type. The two main ways are open surgery and minimally invasive surgery, including laparoscopic methods. Learn more.
7 Which mildly named type of oral thrush can be a sign of excellent gut health?
- Snakes of snakes
- Gravel traps
- The cries of the spirit
These bowel movements don’t leave anything behind when you clean and flush the toilet, which can indicate efficient digestion and good nutrient processing. Learn more.
- Sticky cucumbers
8 Which of the following is not true about hydrogen-rich water?
- It improves athletic endurance and reduces fatigue
- It only quenches thirst
Hydrogen-rich water can support endurance, reduce muscle fatigue symptoms such as lactate, and reduce fatigue after physical stress. Learn more.
- Increases lactate during exercise
- It aggravates the feeling of fatigue
9 Which airborne toxic chemical found in rural Oklahoma was not confined to industrial zones?
- Polyvinyl flame retardant (PDV)
- Refined metal smoke
- Nitrate Based Soot (NBS)
- Medium-chain chlorinated paraffins (MCCP)
Medium-chain chlorinated paraffins (MCCPs) have been detected in rural air, suggesting a wider-than-expected spread of the chemical and raising concerns about hormone disruption and long-term fat storage. Learn more.
10 What plant does green tea come from?
- Aloe vera leaf
- Camellia sinensis
Green tea uses unoxidized Camellia sinensis leaves, which help preserve antioxidants and give the drink a milder flavor compared to black or oolong tea. Learn more.
- Echinacea root
- Hibiscus flower
11 How do essential oils increase the risk of heart disease over time?
- Linoleic acid damages blood vessel walls
Linoleic acid oxidizes easily, inflames inflammation, damages artery walls, and weakens plaque, which quietly adds up to years of heart disease. Learn more.
- Saturated fat blocks blood flow.
- Plaque works in a few days
- Taking protein weakens the vessels
12 How many new cases of dementia are expected each year by 2060?
- 514,000
- 750,000
- 1 million
Researchers estimated about 514,000 new cases by 2020, then predicted to double by 2060 as more people enter the high-risk age range. Learn more.
- 2 million
13 What drugs can be given within three hours to resolve the stroke during an ischemic stroke?
- Anti-epileptic drugs
- Blood pressure pills
- Cholesterol inhibitors
- Thrombolytic drugs
Thrombolytic drugs break up the clot and help limit brain damage when starting treatment within the first three hours. Learn more.
14 What is one way to help reduce long-term health care costs?
- Move your body constantly
Other helpful habits include adequate protein with collagen, adequate carbohydrates for cellular energy, better sleep and safe sunlight exposure, and avoiding highly processed foods and seed oils. Learn more.
- Skip meals often
- Avoid sunlight completely
- He slept a few hours
15 Which antioxidants in eggs build up in your retina?
- Vitamin C and copper
- Lycopene and rutin
- Lutein and zeaxanthin
Lutein and zeaxanthin help protect vision and reduce the risk of cataracts and macular degeneration. Learn more.
- Calcium and Selenium
16 Ibuprofen and naproxen are examples of what drugs?
- Non-steroidal anti-inflammatory drugs (NSAIDs)
Ibuprofen and naproxen can narrow the blood vessels in the kidneys by reducing the activity of the immune hormone. Learn more.
- Selective Serotonin Reuptake Inhibitors (SSRIs)
- Calcium channel blockers
- Proton Pump Inhibitors (PPIs)
17 When does the human body usually work best?
- Around 50 years
- In the teenage years
- 20s to early 30s
By age 50, mental speed, strength, and endurance are often below their peak, even when a person still feels healthy. Learn more.
- After 60 years
18 What method have some pediatricians used to reduce the number of children at risk for autism?
- Early drug treatment based on EEG results
- Genetic testing then medication
- Whole body lifestyle changes
Whole-body approaches focus on modifiable factors such as reducing exposure to toxins and allergens to support early neurological and immune health. Learn more.
- Intensive behavioral therapy in infancy
19 How does taking iodine affect thyroid health?
- It supports thyroid function, but too much can cause autoimmune thyroid disease
Iodine is needed to make thyroid hormones, but too much iodine can trigger autoimmune thyroid disease, especially in people with low genetic tolerance. Learn more.
- It blocks thyroid hormones and reduces immune activity in most people with healthy thyroid function
- It replaces the thyroid hormones and regulates the gland itself to protect the gland
- By increasing genetic tolerance over time, it prevents thyroid disease, allowing the gland to rest
