Do We Actually Need To Eat More Calories When Menstruating? (Skeptical Inquirer)

4 minute read

Shark week, moon time, the crimson tide, a visit from Auntie Flo: whatever you call it menstruation is the roughly monthly interval during which the uterus sheds its lining. For the uterus owner, it is not generally a super fun time; cramping, bloating, headaches, and fatigue are just a few of the symptoms associated with “that time of the month.”

The symptom I want to focus on today, though, is hunger. Whether for chocolate, pizza, or any food really, an increased hunger is a commonly reported phenomenon during, or right before, menstruation. Although we know that periodic (get it?) changes in appetite can be influenced by fluctuations in hormones such as estrogen and progesterone, I became curious whether this increase in hunger also correlated with an actual increased need for energy from food. Just like our bodies produce the sensation of thirst when they require more hydration, maybe they produce the sensation of hunger during menstruation in part because of an increased caloric need.

Read the entire article here: https://skepticalinquirer.org/exclusive/do-we-actually-need-to-eat-more-calories-when-menstruating/

The Science of Cold Brew (McGill OSS)

2 minute read

A few weeks ago I finally had enough of the cold brew trend and decided to see what all the hype was about. I followed this recipe (because $5 at Starbucks is just too much for me), and was surprised to find cold brew wonderfully smooth, sweet and mild. I love coffee, and though I drink it with milk and sugar, I’ve never especially been bothered by the bitterness or acidity of traditionally brewed coffee. None the less, cold brew is quite amazing, and it left me wondering what the chemistry behind it was. 

It turns out that hot water (about 93 ℃ in most drip coffee makers ) accelerates the extraction of molecules and chemicals that, once mixed with water, form the coffee we know and love. Once brewed, the coffee continues to react with air and water molecules. This is why coffee goes stale. Heat accelerates these reactions (as it does most), so coffee left on a burner, or in your car, all day goes staler more rapidly. 

In cold brew, however, there is no heat to help extract these molecules and to cause the break down of others. The time the cold brew is left brewing allows the chemicals to be extracted from the coffee grounds much like the heat does, but you do get different amounts of different chemicals, leading to a different taste. Notably, many molecules that taste bitter are not extracted in large amounts in the absence of heat, which explains cold brew’s sweetness. You may have also seen cold brew being sold pre-packaged in stores, a possibility that is afforded to it due to the cold water not accelerating the ‘staling’ process.

So for once it seems like the hype was justified, though I’ll stick to making my cold brew at home. 

Originally posted here: https://www.mcgill.ca/oss/article/did-you-know-general-science/cold-brew-coffee

Bananas are Berries. Raspberries are Not. (McGill OSS)

2 minute read
All images created by Cassandra Lee

It turns out berry is actually a botanical term, not a common English one. It turns out that blackberries, mulberries, and raspberries are not berries at all,  but bananas, pumpkins, avocados and cucumbers are. So what makes a berry?

Read the entire article here: https://www.mcgill.ca/oss/article/did-you-know/bananas-are-berries-raspberries-are-not

You Don’t Need To Bleach, X-Ray, Or Inspect Your Kids’ Candy This Halloween (But You Do Need To Wear A Mask) (Skeptical Inquirer)

7 minute read

I haven’t gone trick or treating in over a decade, but I still vividly remember my fear and anxiety around Halloween candy. I remember double-checking every piece to make sure it was sealed and throwing away anything that wasn’t. I remember that the neighbors who gave cans of soda were my favorite to visit, not only because I loved pop but also because it was nearly impossible for a can to be opened or tampered with and maintain its pressure.

Halloween sadism is the idea that a stranger would try to hurt trick or treaters by adding poisons or sharp objects to their candy. I remember the first time my mom told me about it. I was around six years old, and as she was tucking me into bed we got to talking about Halloween and razor blades in apples. I was instantly terrified, and when I expressed this, my mom tried to backtrack and explain that it was just a story; it didn’t really happen.

Read the entire article here: https://skepticalinquirer.org/exclusive/you-dont-need-to-bleach-x-ray-or-inspect-your-kids-candy-this-halloween-but-you-do-need-to-wear-a-mask/

Will Wearing A Hat Make Me Go Bald? (Skeptical Inquirer)

10 minute read

While losing the hair on our heads doesn’t have any serious medical implications on its own, it can be seriously damaging to our psyches. Studies have shown that both women and men with alopecia, or hair loss, experience increased stress, diminished self-esteem, and other negative psychological effects.

Some of us live in fear of our part widening or our hairlines receding. Others have made peace with their eventual journey to becoming a Patrick Stewart lookalike. Either way, you’ve likely heard a lot of unsubstantiated claims about behaviors that can cause baldness. As usual, some can be dismissed outright (no, masturbating won’t make you go bald), but some bear further investigation.

Read the entire article here: https://skepticalinquirer.org/exclusive/will-wearing-a-hat-make-me-go-bald/

Am I Drunk, Hungry, Or Both? Alcohol As An Appetite Stimulant (Skeptical Inquirer)

8 minute read

If you’ve never gotten fast food after leaving a bar late at night (or, more correctly, early in the morning) I’d highly recommend it. I’ve never been sure if it’s the intoxication, the tiredness, or the unusual hour that makes post-pub falafel taste like heaven, but somehow after I go out drinking with my lab mates the food always just is better. I had resigned myself to the mysterious joy of 2 a.m. poutine remaining just that, a mystery. But last Christmas my grandfather took me by the shoulders and with odd earnest asked me to write an article finding out if alcohol is an appetite stimulant. Well, Grandpa, it may have taken seven months, but here it is! Let’s take a look at the evidence for alcohol as an appetite stimulant.

Read the entire article here: https://skepticalinquirer.org/exclusive/am-i-drunk-hungry-or-both-alcohol-as-an-appetite-stimulant/

The Science of Sourdough and How a Jar of Microbes Could Help Keep Your Bread Fresher Longer (McGill OSS)

7 minute read

Its catapult to popularity may have been triggered by the pandemic-induced yeast shortages, but even months later, when instant yeast is once again available at most grocery stores, sourdough’s contemporary stardom is barely starting to fade. Sure, many of us turned to making a sourdough starter to simultaneously combat yeast scarcity and our newfound fear of going to the grocery store. But lots of us have kept up with our strange new hobby of mixing water with flour and leaving it on the counter for reasons beyond just the practical.

Read the entire article here: https://mcgill.ca/oss/article/nutrition-technology/science-sourdough-and-how-jar-microbes-could-help-keep-your-bread-fresher-longer

Why Am I Allowed to Drink Clear Fluids Before Surgery, but Not Eat? (McGill OSS)

5 minute read

Surgeons often instruct patients to refrain from consuming food or drink before surgeries. However, even when patients aren’t allowed to eat, they can often drink “clear fluids”. Why aren’t clear fluids counted as consumption, and what purpose does fasting before surgery even serve?

Read the full article here: https://www.mcgill.ca/oss/article/health-general-science/why-am-i-allowed-drink-clear-fluids-surgery-not-eat