1. To improve intercourse time, men can utilize behavioral techniques like the "stop-start" method and "squeeze" technique, perform Kegel exercises to strengthen pelvic muscles, and use desensitizing sprays or thicker condoms. Lifestyle improvements—including cardio, reduced stress, and a healthy diet—along with open communication with partners, can significantly enhance sexual stamina and performance. 

Here are specific methods to improve intercourse time:

Behavioral Techniques

Start-Stop Technique: Stop all stimulation when you feel ejaculation is imminent, wait for the sensation to pass, and then resume.

Squeeze Technique: Gently squeeze the head of the penis for several seconds just before ejaculation to reduce the urge.

Masturbation: Masturbating an hour or two before intercourse can help delay ejaculation. 

Exercises and Physical Health

Kegel Exercises: Strengthen the pelvic floor muscles by stopping the flow of urine mid-stream (though not as a regular exercise) or squeezing the muscles that prevent passing gas. Hold for 3 seconds, then relax for 3 seconds; repeat 10-20 times per session.

Cardiovascular Exercise: Regular running, swimming, or cardio boosts heart health and increases stamina.

Weight Management: Maintaining a healthy weight helps improve circulation and sexual performance. 

Techniques During Sex

Use Desensitizing Products: Sprays, creams, or wipes can lower sensitivity.

Wear Thicker Condoms: These can reduce sensation, allowing for a longer duration.

Focus on Foreplay: Increasing foreplay enhances pleasure for both partners and reduces pressure regarding intercourse duration.

Change Positions: Certain positions may be less stimulating, allowing for longer endurance. 

Lifestyle and Psychological Tips

Reduce Anxiety: Performance anxiety is a common cause of quick ejaculation; focusing on intimacy rather than just performance helps.

Quit Smoking and Limit Alcohol: These habits damage blood vessels and impair sexual performance.

Diet: A diet rich in vegetables, fruits, and fish (omega-3s) can improve circulation and heart health. 

Medical Options

Consult a Doctor: If the methods above do not work, a healthcare professional can suggest medications such as SSRIs (Selective Serotonin Reuptake Inhibitors) or, in some cases, topic numbing creams