Environmental factors can really change how DNA works and looks, and it’s really interesting to see how that happens! Here are some main ways our environment can have an effect:

1. Temperature:

• Extreme heat or cold can make DNA unstable.
• For instance, very high temperatures can cause DNA to lose its shape, like a zipper that doesn't stay closed.
• This is important because it affects how DNA copies itself and makes other important molecules.

2. Chemical Exposure:

• Some chemicals, like pollution or harmful substances, can damage DNA.
• This may lead to mutations or changes.
• For example, a chemical like benzene can change DNA in ways that cause mistakes when it tries to copy itself.

3. Radiation:

• UV rays from the sun can harm our DNA.
• They can cause something called thymine dimers, which are a type of DNA damage.
• If our bodies don't fix these correctly, they could lead to skin cancer.
• This is why using sunscreen is critical; it helps keep our DNA safe from the sun’s harmful rays.

4. Nutritional Factors:

• Getting the right vitamins and minerals is important for repairing DNA.
• For example, folate is essential for making and fixing DNA.
• If we don’t get enough folate, it can lead to problems with DNA.

5. pH Levels:

• The acidity or basicity of our environment can affect DNA stability.
• If the environment is too acidic, it might break down the parts of DNA, which can cause issues.

In summary, it’s clear that where we live and what we’re exposed to can really change how our DNA works. This shows just how important it is to pay attention to our environment and how it affects our health at a tiny level!