"Lecture on Boys' Health in Puberty" PPT

"Lecture on Boys' Health in Puberty" PPT

our embarrassment

1. Teacher to student

2. Parents to children

80% of adolescents' sexual knowledge mainly comes from film and television works, comics, online information and pornographic CDs, while only 0.9% obtain sexual knowledge from parents and schools.

Be a man from an animal perspective

Know yourself correctly

Be a man from a social perspective

protect yourself effectively

The penis is composed of 2 corpora cavernosa and 1 corpora cavernosa. The corpus cavernosum is a soft, spongy-like tissue. There are many vascular plexuses in the cavernous body of the penis, and they all have piston valve devices that open in one direction, acting like a valve.

When sexual excitement occurs, these valves automatically close, and the vascular plexus expands simultaneously under the action of nerve excitement, and a large amount of blood flows into the penis. Since the valves are closed, blood can only enter but cannot exit, and the corpus cavernosum expands, swells, and The penis will become erect.

Penile erection is an instinctive activity, which is affected by both physiological and psychological factors. Under physiological conditions, varying degrees of penile erection can occur in boys ranging from 1-2 years old to elderly people.

Adolescent boys can have about 6 erections every night, each lasting 20-30 minutes.

sperm production

There are testicles and epididymis on the left and right sides of the scrotum. The skin of the scrotum is elastic and has many surface wrinkles. It relaxes when the temperature is high, and the sebaceous glands and sweat glands secrete strongly, accelerating heat dissipation. When the temperature is low, it contracts, reduces heat dissipation, and moves closer to the body. This automatic adjustment function of the scrotum is mainly to protect the spermatogenic function of the testicles.

During the spermatogenesis process of human testicles, a relatively low-temperature environment is required. Through the regulation of the scrotum, the testicles are always kept at around 35°C. Some scientists have done such an experiment. They repeatedly observed the quantity and quality of sperm in men who like to use steam baths. The results showed that after multiple steam baths, the number of sperm decreased, their motility weakened, and the number of immature sperm and abnormal sperm also decreased. will increase.

Boys' beards should be shaved but not pulled out

Pulling out beards is not only painful, but also only the hair shaft and hair roots are pulled out. Because the hair bulbs, hair papillae, and hair follicles cannot be plucked out, beards can still grow back. Pulling out beards can easily damage the facial skin, hair follicles and adjacent sebum. Bacteria attached to the skin surface will take advantage of this, causing inflammation of the hair follicles and sebaceous glands to form boils. Moreover, the area where the beard is located is what is called the "danger triangle" in medicine. district".

What is sex?

Gaozi said: "The nature of food and color is also the nature of food."

Dr. Huang: Don’t abstain from sexual desire, don’t indulge in sexual desire.

The first danger to abstinence,

The second harm is indulgence.

Sexual masturbation behavior in adolescence

The so-called masturbation behavior refers to all self-satisfied sexual desire activities without the participation of the opposite sex. Also called heterosexual experience.

1. Sexual fantasy

Sexual fantasies refer to a person's imagination of sexual-related events that cannot be realized in a waking state. They are self-made "continuous stories" with sexual overtones, also known as "daydreams." Boys and girls in adolescence will have very strong love and desire for the opposite sex, and the emergence of sexual fantasies is normal and natural.

2. Sex dreams

Sex dream refers to the phenomenon of having sexual intercourse with the opposite sex in sleep to achieve sexual satisfaction.

According to foreign reports, the incidence of sexual dreams is more common in men than in women, and it is more common in men during adolescence. Sex dreams are also a normal psychological phenomenon during adolescence.

About 90% of middle school students have inappropriate or wrong views on masturbation. Some people think that masturbation is a "bad habit that is harmful to health", and some think it is an "immoral act" or a "criminal act." Obviously, these views are greatly influenced by traditional concepts. Our country's traditional concept is that masturbation can consume the essence, damage the marrow, and greatly weaken the vitality. In real life, some teenagers do suffer from depression, poor academic performance, and even regrets due to masturbation.

However, in fact, apart from sperm and a small amount of protein, fat, and sugar, the main component of semen is water. The total amount of semen discharged during one masturbation or nocturnal emission is only 3 to 5 ml. This is insignificant compared to the semen produced and discharged by a man in his lifetime. There is no such thing as "vitality" at all. So don't worry. On the contrary, worries and fears have a much greater impact on the body than masturbation or nocturnal emissions themselves. �

Why choose age-appropriate marriage?

The age of marriage under my country's new marriage law is no earlier than 22 years old for men. This is the legal minimum age for marriage, not the optimal age. Experts believe that the best age for marriage for both men and women should be between 23 and 28 years old. This is because young men and women only begin to enter the mature stage around the age of 18-20. Although their physical development is basically mature, the development of the reproductive system of some people is still in the immature stage.

After the age of 23, the world view and outlook on life are basically formed, and you also have a certain ability to judge right and wrong. This is not only conducive to building a happy and happy family, but also conducive to the accumulation of family finance and the physical and mental health of both parties.

About puppy love

I wish the students to become real "men" and have a better tomorrow!

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