There are several myths surrounding sports and sex. Here are a few examples:

1. Myth: Sex before sports reduces performance.
Reality: There is no scientific evidence to support this claim. In fact, research suggests that sex can have relaxing and bonding effects, which can positively impact athletic performance.

2. Myth: Athletes should abstain from sex before big games.
Reality: This is an old wives' tale with no scientific basis. In fact, sex can help reduce stress and improve sleep quality, both of which can positively impact athletic performance.

3. Myth: Sex makes athletes weak.
Reality: This is a harmful stereotype with no scientific basis. Sex does not reduce muscle mass, strength, or endurance.

4. Myth: Female athletes should avoid sex during their menstrual cycle.
Reality: There is no scientific evidence to support this claim. In fact, sex can help reduce menstrual cramps and improve mood.

5. Myth: Sex before sports increases injury risk.
Reality: There is no scientific evidence to support this claim. In fact, research suggests that sex can improve flexibility and reduce muscle tension, both of which can reduce injury risk.

It's essential to remember that every individual is unique, and the effects of sex on athletic performance can vary. However, there is no scientific basis for the myths surrounding sports and sex.

Sexual activities can have both positive and negative effects on an athlete's performance, depending on various factors. Here are some possible effects:

Positive effects:

1. *Relaxation and stress relief*: Sex can help reduce stress and anxiety, leading to improved focus and concentration.
2. *Improved sleep*: Sex can promote better sleep quality, essential for physical recovery and performance.
3. *Boosted mood*: Sex releases endorphins, which can enhance mood and overall sense of well-being.
4. *Increased self-esteem*: A healthy sex life can improve body image and confidence.
5. *Reduced muscle tension*: Sex can help relax muscles, reducing muscle tension and improving flexibility.

Negative effects:

1. *Energy expenditure*: Sex can burn energy, potentially affecting performance if not balanced with adequate nutrition and rest.
2. *Distraction*: Preoccupation with sexual activities or relationships can distract from training and competition focus.
3. *Time management*: Excessive time spent on sexual activities can impact training time and recovery.
4. *Emotional intensity*: Intense emotional experiences, such as those related to sex, can impact mental preparation and focus.
5. *Physical discomfort*: Certain sexual activities or positions can lead to temporary physical discomfort or injury.

It's essential to note that individual experiences vary, and the impact of sexual activities on athletic performance depends on factors like:

- Frequency and intensity of sexual activities
- Individual energy levels and recovery needs
- Relationship dynamics and emotional state
- Personal preferences and boundaries
- Adequate nutrition, sleep, and training

Ultimately, a balanced and healthy approach to sex and relationships, combined with proper training, nutrition, and recovery, can support optimal athletic performance.