1 What makes krill oil different from regular fish oil?
- Krill oil does not contain omega-3 fats.
- Omega-3 is bound to phospholipids.
Krill oil carries omega-3 fats in the form of phospholipids and contains astaxanthin, which may help prevent the oil from oxidizing. Learn more.
- Fish oil naturally contains more astaxanthin.
- Krill Oil Is Not Only Good for Brain Health
2 What can happen if blood flow to the optic nerve is suddenly blocked?
- After a day, your vision becomes blurry.
- When intraocular pressure suddenly drops without any symptoms
- Sudden vision loss can be difficult to reverse
Nonarteritic anterior ischemic optic neuropathy (NAION) blocks blood flow to the optic nerve, resulting in rapid vision loss, often permanent. Learn more.
- Color perception improves over time.
3 Which immune cells typically activate each other during infection?
- platelets and red blood cells
- B cells and T cells
B cells and T cells typically signal each other briefly during an infection and then quiet down when the immune response is no longer needed. Learn more.
- neurons and skin cells
- fat cells and bone cells
4 Which thinking skills did ultra-processed foods have the greatest impact on?
- attention
The higher your intake of ultra-processed foods, the more your attention, including concentration, reaction speed, and working memory, declines, while your memory remains more stable. Learn more.
- hearing
- balance
- vision
5 What classes of drugs are described as being massively overprescribed and difficult to withdraw?
- antibiotics
- antacid
- opioids
- Selective serotonin reuptake inhibitors (SSRIs)
Selective serotonin reuptake inhibitors (SSRIs) are widely used and often described as difficult to stop and the focus of new prescribing reforms. Learn more.
6 What health conditions commonly overlap with dementia?
- seasonal allergies
- motion sickness
- food intolerance
- melancholia
Depression can overlap with dementia and can lead to fatigue, decreased motivation, disrupted sleep, and social withdrawal. Learn more.
7 What fats can be harmful if too much accumulates in cell membranes?
- Butyric acid
- Lauric acid
- linoleic acid
Excess linoleic acid can oxidize in cell and mitochondrial membranes, producing reactive byproducts that interfere with cell signaling and inflammation regulation. Learn more.
- caprylic acid
Test your knowledge
Master Level Quiz
1 What can krill oil improve for older people?
- grip strength
A 2026 study found that older adults ages 65 and older who took krill oil for six months improved their grip strength, knee strength, and muscle thickness. Learn more.
- jaw strength
- vision
- hair growth
2 What is the generic name for Pepcid?
- Omeprazole
- Ranitidine
- Famotidine
Pepcid is the brand name for famotidine, an H2 blocker used to relieve heartburn that may also affect serotonin activity. Learn more.
- cimetidine
3 What gradually breaks down in osteoarthritis?
- bone cells
- muscle fiber
- spinal fluid
- cartilage
Osteoarthritis occurs when cartilage slowly breaks down, causing joint pain, stiffness, swelling, and reduced mobility. Learn more.
4 What warning signs may indicate sudden vision loss?
- Mild eye itchiness after screen use
- Better night vision than usual
- More vivid colors in bright lighting
- Suddenly blurry or dark spots appear.
Sudden blurriness, black spots, loss of vision, or new color problems may be signs of optic nerve damage and should be taken seriously. Learn more.
5 How does lupus affect the immune system?
- It attacks body tissues, including the skin, joints, kidneys, and heart.
Lupus is an autoimmune disease in which the immune system attacks the body’s tissues. It most often affects women ages 15 to 44. Learn more
- Supports stronger bones, muscles, nerves and healthy blood flow.
- Improves daily energy, digestion, sleep and normal recovery.
- Oxidizes skin, joints, kidneys and heart.
6 Why is oriental orchid called the herb of immortality?
- Known to support calm energy and balance.
- It is known for promoting longevity and vitality.
Jiaogulan is called the “herb of immortality” because in traditional use it has long been linked with longevity, vitality, and disease resistance. Learn more.
- Traditionally used to replace daily movement habits.
- It’s important to help your body handle stress better.
7 Why may some cancer treatments cause autoimmune symptoms?
- Tumors cause the immune system to stop working.
- Healthy tissue becomes invisible to immune cells.
- During treatment, the immune “off switch” is removed.
Some cancer treatments remove immune brakes to better fight tumors, but this may also make immune cells more likely to attack healthy tissue. Learn more.
- Anticancer drugs permanently block all inflammation.
8 Why is krill oil more bioavailable than fish oil?
- Krill oil does not contain omega-3 fats.
- Fish oil is more poorly absorbed due to triglycerides.
- Krill oil works because it has more EPA and DHA.
- Omega-3 is bound to phospholipids.
Krill oil binds eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) to phospholipids, making them easier for cells to absorb and use. Learn more.
9 Besides vitamin C, what other beneficial compounds do lemons contain?
- citronella oil
- Flavonoids
Lemons contain flavonoids such as hesperidin and limonoids, which may provide antioxidant, anti-inflammatory and heart-supporting benefits. Learn more.
- Fructose lipids
- Stevia-like sweeteners
10 How can ultra-processed foods affect the brain?
- hair growth signals
- Bone recovery time
- stable cellular energy
Ultra-processed foods can impair cellular energy production, blood sugar regulation, and inflammation, which can weaken your focus and mental stamina. Learn more.
- tooth enamel strength
11 Why is dimethyl sulfoxide (DMSO) called the umbrella remedy?
- Can support a variety of health conditions.
DMSO is called the umbrella treatment because it can support many issues through its effects on inflammation, circulation, and damaged cells. Learn more.
- Effective for a variety of skin irritations and conditions.
- It blocks all drugs from working.
- Treats only one type of infection.
12 How does potassium help lower blood pressure?
- Sodium gets trapped in your bloodstream.
- Blood pressure hormones rise quickly.
- Kidney signals slow down completely.
- Excess sodium is more easily eliminated.
Potassium helps the body eliminate excess sodium, supports early kidney response, and reduces hormones that can increase blood pressure. Learn more.
13 What did Robert F. Kennedy Jr. announce about psychiatric drugs?
- Plan to expand use of SSRIs in children
- Federal Efforts to Reduce Inappropriate SSRI Prescriptions
These efforts are focused on safer SSRI prescribing, appropriate tapering support, and non-pharmacological mental health options. Learn more.
- Ban all non-pharmacological mental health treatments
- Rules to End Provider Training for Tapering
14 What are the benefits of high-intensity interval training (HIIT) for people with pre-diabetes?
- Insulin sensitivity and glucose handling are improved.
High-intensity interval training (HIIT) may improve insulin sensitivity, glucose processing, and mitochondrial energy production in people with prediabetes. Learn more.
- Weight loss is the only health benefit
- Every time you exercise, your blood pressure stabilizes.
- Mitochondria produce less cellular energy.
15 What certification will help me determine if my beef is actually grass-fed beef?
- United States Department of Agriculture (USDA) Organic Seal
- Certified by the American Pasture Farming Association (AGA)
American Grassfed Association (AGA) certification, along with the phrases “100% grass-fed” and “grass-finished,” help ensure that the beef is not grain-finished. Learn more.
- Generally recognized as safe (GRAS) label
- Good Manufacturing Practices (GMP) certification
16 Is more exercise always better for brain health?
- Yes, constant, intensive exercise can always protect your brain
- Although it depends, recovery is less important than strength.
- If your weight remains normal, a semi-sedentary lifestyle is best.
- No, exercising too intensely without recovery can be counterproductive
Excessive intensity can increase cortisol, disrupt sleep, and strain the nervous system. Moderate training with recovery better supports long-term brain health. Learn more.
17 How do you find your carbohydrate response type?
- Eat all your carbs for a week
- After eating, write a diary based on your hunger.
- Wear a continuous blood sugar monitor for several weeks
Wearing a continuous blood sugar monitor for two to four weeks can help you identify your type of carbohydrate response by helping you see which carbohydrate foods cause the biggest blood sugar spikes. Learn more.
- Check your weight change after eating
18 What’s the best way to take a nap?
- More than 1 hour after dinner
- Within 30 minutes, before 2pm
Short naps of less than 30 minutes before 2 p.m. can improve attention and memory while lowering the risk of alertness or sleep inertia. Learn more.
- Anytime late in the evening
- until deep sleep begins
19 What foods are good sources of choline?
- white rice
- apple juice
- canola oil
- free range eggs
Free-range egg yolks provide choline, which the body uses to make phospholipids that support cellular and mitochondrial membrane repair. Learn more.
20 What are chelating agents designed to do?
- Binds to toxic metals and can be removed
Chelating agents attach to toxic metals such as mercury or lead. Once combined, these metals can be safely excreted from the body through urine or stool. Learn more.
- Increase your blood sugar levels
- Build protein into your muscles
- Improves digestion only
21 What antioxidant system helps the body neutralize oxidative stress?
- glutathione
Glutathione is an internal antioxidant system that neutralizes oxidative stress, protects cells, and supports repair when cellular energy is strong. Learn more.
- cortisol
- glucose
- histamine
