1 Which pesticide has been linked to a higher risk of Parkinson’s disease?

• Chlorpyrifos

  Long-term chlorpyrifos exposure was associated with more than a 2.5-fold higher risk of Parkinson’s disease in agricultural communities. Learn more.

• Atrazine
• Permethrin
• Malathion

2 What can happen when you take a larger supplement dose than your body can readily absorb?

• Absorption always increases proportionally
• The nutrient stays stored indefinitely
• More of the dose may be excreted

  Absorption does not always rise in proportion to the dose. For magnesium, the percentage absorbed can decrease as the amount taken increases. Learn more.

• The nutrient becomes easier to absorb

3 How many extra calories per day did people eat on an ultraprocessed diet?

• 100 calories
• 250 calories
• 350 calories
• 500 calories

  Twenty adults stayed at the NIH Clinical Center for four weeks and ate about 500 more calories per day on the ultraprocessed diet. Learn more.

4 What do you call someone who naturally prefers later bedtimes and wake times?

• Morning chronotype
• Evening chronotype

  An evening chronotype describes people who naturally prefer later sleep and wake times. This group showed some of the strongest associations with brighter daytime light. Learn more.

• Irregular sleeper
• Short sleeper and an insomniac

5 Which muscles were linked to better future heart health?

• Chest, back, and rib muscles

  Healthier muscles in the chest, back, and between the ribs were associated with a lower likelihood of heart attack. Learn more.

• Arm, shoulder, and hand muscles
• Hip, thigh, and calf muscles
• Neck, jaw, and facial muscles

6 Which antioxidant has been studied for supporting ovarian cell health in women with Polyendocrine Metabolic Ovarian Syndrome (PMOS)?

• Lycopene
• Lutein
• Astaxanthin

  Astaxanthin has been studied for its effects on oxidative stress, inflammation, insulin sensitivity, and the environment surrounding developing eggs. Learn more.

• Beta-carotene

7 As the ovaries age, which type of activity becomes more prominent?

• Digestive activity
• Immune-related activity

  Aging mouse ovaries showed greater activity in immune-related genes and accumulated more immune cells as reproductive functions declined. Learn more.

• Bone-forming activity
• Respiratory activity