People over **65 years** old are more sensitive to the effects of alcohol for several reasons:

- **Age**: Alcohol affects people over 65 years old more. This is because, with age, the body processes alcohol differently, which can increase sensitivity to its effects.

- **Diminished abilities**: Older people may have a **reduced ability to pay attention** and need more time to react to unforeseen events. Alcohol can exacerbate these difficulties, increasing the risk of accidents.

- **Vision and hearing problems**: Many older people see and hear worse, which can worsen with alcohol consumption, affecting their ability to drive safely.

- **Effects of alcohol on driving**: Alcohol can cause **difficulties in coordinating movements**, increase reaction time, and decrease the ability to make appropriate decisions. These effects are especially dangerous for older people, who may already have these reduced abilities.

In summary, the combination of age and the effects of alcohol makes people over 65 years old more sensitive to its effects, which can increase the risk of accidents when driving.