Why 20 Seconds of Hand Washing is Crucial to Preventing Coronavirus

Hand washing is one of the most effective ways to prevent the spread of coronavirus. Scientific studies have shown that washing hands for at least 20 seconds can significantly reduce the risk of contracting and spreading the virus. However, many people underestimate the importance of this simple act, thinking that a quick rinse will suffice. This article will explore the reasons why proper hand washing is crucial and why the recommended 20-second duration is essential.

Understanding the Optimal Time for Hand Washing

Detailed timed studies have revealed that 20 seconds is the optimal time to effectively remove viruses and bacteria from the skin. The contact with soap is effective in killing the virus, but the virus is very small and can hide in tiny crevices, between fingers, and even under fingernails. Adequate time is needed for the soap to penetrate these areas thoroughly.

The Importance of Thorough Cleaning

Several studies indicate that a quick wash often fails to clean all the critical areas of the hands. The cracks, crannies, and crevices between fingers and the tops of hands/palms need to be thoroughly cleaned. People often neglect the areas near the fingernails, which are prime hiding spots for germs. Using friction to scrub your hands, particularly between fingers, under nails, and up to the wrist, takes at least 15 to 20 seconds. This is why 20 seconds is recommended for non-medical individuals.

Medical Personnel and Extended Hand Washing

Medical personnel, who often deal with various pathogens, usually need to wash their hands for a longer duration. Some may need to wash from their hands up to their elbows, depending on their specific tasks. Therefore, their washing times are typically much longer.

Thankfully, we do not need to wash our hands for an extended period to eliminate the virus. A 3-minute or 5-minute hand wash would be too long and is not necessary. Twenty seconds is the time recommended for the average person to ensure thorough and effective cleaning.

The Role of Soap in Removing Viruses

Soaps work by breaking down the fatty layer on the outside of viruses, rendering them incapable of causing infection. This process takes time, and 20 seconds is sufficient for the soap to penetrate the skin and all the minute crevices, ensuring that the germs are loosened and removed.

Balancing Thoroughness and Overkill

While 20 seconds is the optimal duration, some may find it difficult to maintain this for an entire minute. However, it is important to strike a balance between thoroughness and overkill. Spending 30 seconds or more might be unnecessary, as the virus-cleaning process is efficient within 20 seconds. On the other hand, a rapid 10-15 second wash is likely insufficient and may leave some germs behind.

In conclusion, the 20-second hand wash is a critical step in preventing the spread of viruses and bacteria. While it may seem like a long time, it is essential for effective cleaning and the protection against germs. Whether you are a medical professional or just an average person, adhering to the recommended hand washing duration is crucial in maintaining a healthy and hygienic environment.