Weekly health quiz — CBD, homeopathy and 5G

1 Which of the following nutrients has not been shown to protect skin from ultraviolet damage?

• Vitamin E
• Vitamin A

  Scientists have identified several nutrients that have UV protective activity, reducing your risk of sunburn and related skin damage, including astaxanthin, vitamins D and E, lycopene and epigallocatechin gallate (EGCG). Learn more.

• Lycopene
• Astaxanthin

2 Which of the following plants is cannabidiol (CBD) derived from?

• Poppy
• Hemp only
• Cannabis and hemp

  CBD is the nonpsychoactive component of cannabis and hemp. Unlike the THC in cannabis, CBD does not induce a high, but has many clinical benefits, including the control of seizures and pain. Learn more.

• Cannabis only

3 Which of the following has been shown to be an effect of millimeter wave exposure, used in 5G?

• Hypotension (low blood pressure)
• Cold flashes; sensation of freezing
• Successful cancer treatment
• Burning sensation; pain

  5G relies primarily on the bandwidth of the millimeter wave, known to cause a painful burning sensation. It's also been linked to eye and heart problems, suppressed immune function, genetic damage and fertility problems. Learn more.

4 Recent research showing Alzheimer's disease is a double-prion disease found the following scenario had the strongest correlation to dying prematurely:

• High amounts of tau buildup

  Higher levels of prion-like amyloid beta and tau were found in those with early onset of Alzheimer's who died at an earlier age, with tau buildup showing the strongest correlation. Compared to a patient who died of Alzheimer's at the age of 90, a patient who died at 40 had on average 32 times higher amounts of tau prions in their brain. Learn more.

• Low amounts of tau buildup
• Low amounts of amyloid beta plaque
• High amounts of amyloid beta plaque

5 Research suggests shows gardening can help improve cognitive function by:

• Interrupting rumination
• Increasing brain nerve growth factors

  Research also shows gardening can help improve cognitive function by increasing brain nerve growth factors such as BDNF. Learn more.

• Engaging effortless attention
• Exposing you to beneficial microorganisms

6 Homeopathy is believed to work:

• by the placebo effect
• by the action of greatly diluted nanoparticles
• by water absorbing energy of the substance

  Homeopathy is believed to work by water's ability to absorb the energy of a substance. Learn more.

• by treating a disease with opposite drugs

7 The following may be a contributing factor that gets overlooked in many cases of fibromyalgia:

• Enzyme G6PD insufficiency
• Glyphosate exposure
• Calcium deficiency
• High oxalate levels

  Elevated oxalate is a common cause of chronic pain and fibromyalgia. One way to lower your oxalate level is to take Epsom salt baths, as the sulfate will displace the oxalates. Learn more.