1 What makes krill oil different from regular fish oil?

• Krill oil contains no omega-3 fats
• Its omega-3s are attached to phospholipids

  Krill oil carries omega-3 fats in phospholipid form and contains astaxanthin, which may help protect the oil from oxidation. Learn more.

• Fish oil naturally contains more astaxanthin
• Krill oil works only for brain health

2 What can happen when blood flow to the optic nerve is suddenly blocked?

• Vision becomes blurry within the end of the day
• Eye pressure suddenly drops without symptoms
• Rapid vision loss may be hard to reverse

  Nonarteritic anterior ischemic optic neuropathy (NAION) blocks blood flow to the optic nerve, causing fast vision loss that is often permanent. Learn more.

• Color perception improves over time

3 Which immune cells normally activate each other during an infection?

• Platelets and red blood cells
• B cells and T cells

  B cells and T cells usually signal each other briefly during infection, then quiet down once the immune response is no longer needed. Learn more.

• Neurons and skin cells
• Fat cells and bone cells

4 Which thinking skill was most affected by ultraprocessed foods?

• Attention

  Higher ultraprocessed food intake was linked to worse attention, including focus, reaction speed, and working memory, while memory stayed more stable. Learn more.

• Hearing
• Balance
• Vision

5 What drug class is described as massively overprescribed and hard to withdraw from?

• Antibiotics
• Antacids
• Opioids
• Selective serotonin reuptake inhibitors (SSRIs)

  Selective serotonin reuptake inhibitors (SSRIs) are described as widely used, often difficult to stop and a focus of new prescribing reforms. Learn more.

6 What health condition commonly overlaps with dementia?

• Seasonal allergies
• Motion sickness
• Food intolerance
• Depression

  Depression can overlap with dementia and may bring fatigue, low motivation, disrupted sleep, and social withdrawal. Learn more.

7 Which fat can become harmful when too much builds up in cell membranes?

• Butyric acid
• Lauric acid
• Linoleic acid

  Excess linoleic acid can oxidize in cell and mitochondrial membranes, creating reactive byproducts that disrupt cell signaling and inflammation control. Learn more.

• Caprylic acid