Ask HN: Something you’ve done your whole life that you realized is wrong?

Article summary

The article's author realized they had been holding their pencil incorrectly while writing and changed their grip after helping their son learn to write. This experience prompted the author to ask what other common practices people may be doing incorrectly. The author invites readers to share their own experiences of discovering better ways to do everyday tasks. The discussion focuses on daily habits and the potential for improvement.

Main themes

• oral health
• daily habits
• proper techniques
• effectiveness of flossing
• toothbrushing methods
• fluoride ingestion risks

What commenters say

• Rinsing with water after brushing teeth may not be necessary and could wash away beneficial toothpaste residue.
• Flossing is a recommended practice for removing bacteria and food debris from teeth, despite some questioning its effectiveness.
• The proper technique for brushing teeth is debated, with some advocating for circular motions and others recommending brushing from the root to the top.
• Swallowing toothpaste is not recommended due to the potential toxicity of excessive fluoride ingestion.
• The benefits of flossing may outweigh the costs, including preventing gum disease and reducing the need for dental work.
• Some argue that the effectiveness of flossing is not proven, and more research is needed to confirm its benefits.
• Electric toothbrushes may be more effective than manual toothbrushes, especially for those who do not use proper technique with manual brushes.
• The amount of toothpaste used and the practice of spitting versus rinsing are also discussed as factors in maintaining good oral health.