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Critically Speaking

Nov 24, 2021

When we hear the term tumor or cancer, the image that often comes to mind is a bunch of bad cells next to normal ones, and growing. Like many things, it's just not that simple. How do the normal cells turn bad? Can our immune systems detect the cancer cell and kill it? Why does some, initially successful,...

Nov 17, 2021

Evidence is emerging that fluoride, a chemical that helps prevent dental cavities or caries, also is a neurotoxin that can cross the placenta and enter the developing brain. Recent studies reveal that excess fluoride during fetal development can result in impaired intelligence and cognition in children.


Nov 10, 2021

What happens when we remember something?  Therese Markow talks with neuroscientist Dr. Ben Albensi about how memory works, involving both chemical and structural changes.  They talk about the signals in the brain, the connections among different brain regions underlying memory, and the role of sleep in consolidating the...

Nov 3, 2021

Infertility is on the rise, leading otherwise healthy young couples to seek a form of assisted reproductive technology appropriate for their particular situation. This increase infertility of considerable concern. Is one sex affected more than the other? What are the long-range implications if the trend keeps going? Is...