Weekly Health Quiz: More Sleep May Curb Hunger, Protecting Your Prostate, and Why Vitamin B1 Matters

1 If a person lacks sufficient sleep, how much should time in bed be increased each week?

• 5 minutes
• 10 minutes
• 15 minutes

  Gradually increasing time in bed by 5 to 15 minutes each week supports better sleep without overwhelming the body. Learn more.

• 30 minutes

2 What type of veins appear on the legs as bulging, blue or purple lines under the skin?

• Arteries
• Capillaries
• Lymph vessels
• Varicose veins

  Varicose veins are swollen, twisted blue or purple veins caused by weakened vein valves that allow blood to flow backward and pool. Over time, this can lead to clots, ulcers, and swelling. Learn more.

3 Which statement best describes sedentary time?

• Time spent sitting or lying down while awake

  Sedentary time refers to waking hours spent sitting or lying down. Prolonged, uninterrupted periods reduce muscle activity and impair blood sugar and fat metabolism. Learn more.

• Time spent sleeping or resting overnight
• Time spent doing light physical activity
• Time spent exercising at very low intensity

4 Which habit helps regulate the body’s circadian rhythm?

• Napping at different times each day
• Staying awake later on weekends to reset the body clock
• Going to bed and waking up at the same time

  A consistent sleep schedule stabilizes circadian rhythms, helping regulate hormones that control appetite, metabolism, and energy balance. Learn more.

• Eating meals at random hours

5 What is fat that accumulates in organs not designed to store it called?

• Ectopic fat

  Ectopic fat forms in organs like the liver, where fat is not meant to be stored. This disrupts metabolism and is linked to insulin resistance and inflammation. Learn more.

• Subcutaneous fat
• Visceral fat
• Brown fat

6 Which stress response is triggered by uncontrolled anger?

• Rest and digest response
• Sleep-wake regulation cycle
• Fight-or-flight response

  Uncontrolled anger activates the fight-or-flight response, raising heart rate, blood pressure, and stress hormones, which over time increases inflammation and disease risk. Learn more.

• Cooling and recovery response

7 Which one of these does not support healthy eyesight?

• Leafy greens and carrots
• Artificial fruit-flavored gummies

  Whole foods rich in vitamin A and antioxidants support retinal health, while sugary processed foods lack key nutrients needed for healthy vision. Learn more.

• Grass fed dairy and egg yolks
• Dried berries and citrus fruits

8 Where is the pancreas located in the body?

• In front of the stomach
• Above the liver
• Below the intestines
• Behind the stomach

  The pancreas sits behind the stomach and plays a key role in digestion and blood sugar control. Pancreatic issues can develop without noticeable symptoms over time. Learn more.

9 Which of the following is not a cause of frequent urination?

• Urinary tract infections (UTIs)
• Proper hydration and healthy lifestyle habits

  UTIs, diabetes, and pregnancy can increase urination. Proper hydration supports normal function and is not a cause of excessive or frequent urination. Learn more.

• Diabetes-related blood sugar imbalance
• Pregnancy-related hormonal changes

10 Which is a common early warning sign of impaired brain function that should not be ignored?

• Increased appetite
• Confusion and dizziness

  Symptoms like confusion, dizziness, and trouble walking signal impaired brain function and may indicate developing neurological damage. Learn more.

• Improved energy levels
• Better sleep quality

11 Which natural therapy is described as an “umbrella remedy” due to its wide range of effects?

• Curcumin extract
• Resveratrol from grapes
• Dimethyl sulfoxide (DMSO)

  Dimethyl sulfoxide (DMSO) is called an “umbrella remedy” because it reduces inflammation, improves circulation, and helps deliver substances through the skin, supporting multiple therapeutic effects. Learn more.

• Coenzyme Q10 (CoQ10)

12 How do plyometric exercises improve bone health?

• By triggering bone growth through osteogenic processes

  Plyometric exercises like jumping create impact forces that stimulate osteogenic activity, helping increase bone density and strengthen the hips and spine. Learn more.

• By reducing calcium levels in the bloodstream and depositing them in the bones
• By limiting stress placed on the skeletal system
• By slowing down bone cell activity over time to preserve mineral density

13 Which of the following is not a common source of microplastics?

• Synthetic clothing like polyester and nylon
• Indoor air filled with plastic fibers
• Washing synthetic fabrics frequently
• Natural fabrics like cotton and wool

  Synthetic fabrics shed microplastic particles into the air and water, while natural materials like cotton and wool release far fewer synthetic fibers. Learn more.

14 Which cells are responsible for building new bone?

• Osteoclasts
• Osteoblasts

  Osteoblasts are the cells that build new bone, while osteoclasts break down old bone. A healthy balance between the two is key for maintaining bone strength. Learn more.

• Chondrocytes
• Fibroblasts

15 How many pairs of sinuses are located inside the human head?

• 4

  Humans have four pairs of sinuses, totaling eight cavities, located in the forehead, between the eyes, behind the nose, and under the cheeks. Learn more.

• 2
• 6
• 8

16 Poor sleep increases cravings for which type of food?

• Fresh fruits
• Whole grains
• Fried foods

  Poor sleep shifts food choices toward fried and sugary foods, increasing how often these are eaten compared to people who sleep well. Learn more.

• Leafy vegetables

17 How much ultraprocessed food is linked to a measurable rise in metabolic risk?

• One serving per day

  Just one extra daily serving of ultraprocessed food is linked to a higher risk of obesity, increased abdominal fat, and a 12% rise in Type 2 diabetes risk. Learn more.

• Two servings per day
• Three servings per day
• Four servings per day

18 What type of radiation from computed tomography (CT) scans is linked to increased cancer risk?

• Infrared radiation
• Ultraviolet radiation
• Microwave radiation
• Ionizing radiation

  CT scans use ionizing radiation to deliver about 70 times more exposure than a chest X-ray. This level can damage DNA and increase lifetime cancer risk with repeated scans. Learn more.

19 What is a main driver of today's chronic disease epidemic?

• Chronic dehydration
• Not getting enough sleep
• Processed foods

  About 90% of calories in the American diet come from processed foods, which are linked to inflammation, metabolic dysfunction, and chronic disease. Learn more.

• Sedentary lifestyle

20 What is the name of the protective layer that coats the inside of blood vessels?

• Endothelium
• Glycocalyx

  The glycocalyx is a thin, protective layer that coats the inside of blood vessels, lining the endothelium. It helps prevent clotting and supports nitric oxide production to keep blood flowing smoothly. Learn more.

• Myelin sheath
• Collagen matrix

21 Why is the ketogenic diet difficult to sustain long-term?

• It eventually causes weight gain in most people
• It can disrupt cellular energy production over time

  Long-term low-carb intake can disrupt mitochondrial energy flow, leading to reduced energy production, gut imbalance, and metabolic stress over time. Learn more.

• It completely stops fat metabolism after a few months
• It eliminates all sources of protein, which your body always needs