Why doesn't it go Dark when we Blink? + more videos | #aumsum #kids #science #education #children

TL;DR

Blinking doesn't make us see darkness due to brain suppressing info; Antacids neutralize stomach acid; Eye bags result from aging; Painkillers block pain signals.

Transcript

It's AumSum Time. Why doesn't it go dark when we blink? Because we have transparent eyelids. We see objects when light from objects enters our eyes and hits retina. Now, when we blink, our retina does not receive any light. Then, why does it not appear dark? Because our brain suppresses this information from retina. Ignoring the darkness. Thus, we ... Read More

Key Insights

• 🧠 Blinking doesn't make us see darkness due to brain suppression of information from the retina.
• ❓ Antacids neutralize excess stomach acid by reacting with alkalis contained in them.
• 🥯 Eye bags are primarily caused by aging-related changes in collagen and elastin production.
• 💁 Painkillers block enzymes involved in the formation of compounds that increase nociceptor sensitivity.
• 🙈 The brain stores the last image seen before blinking to fill in darkness during the blink.
• 🥺 Aging causes the skin to produce less collagen and elastin, leading to the formation of eye bags.
• 💦 Antacids react with hydrochloric acid in the stomach to form salt and water, neutralizing the acid.

Questions & Answers

Q: How does blinking not make us perceive darkness?

When we blink, the transparent eyelids block light to the retina, but the brain suppresses this info, making us not consciously aware of the darkness.

Q: How do antacids work to relieve acidity?

Antacids contain alkalis that neutralize excess stomach acid by reacting with it, forming salt and water, which provides relief from heartburn or acidity.

Q: What causes eye bags to form?

Aging causes a decrease in collagen and elastin production, leading to loose skin around the eyes and fat accumulation, resulting in the appearance of eye bags.

Q: How do painkillers alleviate pain?

Painkillers like aspirin and ibuprofen block enzymes COX-1 and COX-2 from forming prostaglandins, thereby reducing the sensitivity of nociceptors and alleviating pain.

Summary & Key Takeaways

• When we blink, our transparent eyelids block the light from reaching the retina, but our brain suppresses this information, so we don't perceive darkness.

• Antacids containing alkalis like calcium carbonate react with stomach acid to neutralize it, providing relief from heartburn or acidity.

• Eye bags are primarily caused by aging, as skin loses collagen and elastin, leading to loose skin and fat accumulation around the eyes.