Sexual function characteristics of elderly men, psychological barriers, and growth, development, and nutritional needs during adolescence

Older men experience slower arousal, erection, and orgasm compared to younger men; this is a normal physiological change and should not be considered impotence. The physiological phenomena accompanying orgasm, such as changes in blood pressure, heart rate, and skin, are also less pronounced than in younger men. Sexual arousal is no longer entirely concentrated in the genitals, but active sexual behavior is still possible. Some older men, even those who have not had sex for many years, can still resume effective sexual activity when given appropriate sexual stimulation and a partner. Without any acute or chronic factors causing loss of sexual function, a healthy man, even over 80, can still engage in sufficient sexual activity. Comparing the sexual function of older men and women, the decline in sexual function is less pronounced in older men and more pronounced in older women. This is related to the greater influence of traditional cultural sexual repression on women. The better the health of an older person, the less the decline in sexual function. Sexual function is also related to the state of the couple's sexual life before entering old age. Generally speaking, couples who had harmonious sexual lives before entering old age tend to maintain good sexual function in old age. In addition, there are significant individual differences in sexual function among the elderly.

Some elderly people experience sexual dysfunction due to psychological reasons, which can be summarized as follows: (1) Wrong ideas: Many elderly people have wrong sexual ideas. Some think, "My children and grandchildren are all grown up, and I'm still doing that. It's really indecent for an old man." Others think, "I'm too old to have sex anymore, and it will hurt my health." As a result, their sexual interest gradually declines. (2) Lack of sexual knowledge: Many elderly people do not understand the characteristics of sexual function in old age. Elderly men do not get an erection for a long time after ejaculation, and elderly women experience slower vaginal lubrication, decreased vaginal wall elasticity, and decreased genital sensitivity. These are all normal phenomena. However, some elderly people think that this is a sign of loss of sexual function and automatically stop having sex. (3) Lack of self-confidence: To maintain healthy sexual function, one should be confident in one's sexual ability and not be afraid of getting older or distressed by temporary setbacks. However, some middle-aged and elderly people lament that they are "old and useless" when they experience setbacks in their sex life, which leads to feelings of inferiority and affects the normal functioning of their sexual function. (4) Fading of feelings: Many elderly people do not understand that the fire of love needs to be constantly fueled in order to burn for a long time. They believe that since they are an old married couple, there is no need to talk about love anymore. As a result, the passion of love cools down over time, and the feelings fade away without them realizing it. Sexual life becomes an occasional chore, which naturally leads to the degeneration of sexual function. (5) The influence of emotions: Unfortunate events in life can cause people to have negative emotions such as sadness, depression, and distress, which can affect the normal secretion of sex hormones, leading to low libido and affecting normal sexual function.

Before puberty, the height difference between boys and girls is minimal, with boys typically growing 1-5 cm taller than girls on average. However, after about 10 years of puberty, adult males are significantly taller than adult females. According to medical observations, adolescents generally experience a growth spurt lasting about three years during puberty, with boys growing 7-9 cm per year, sometimes reaching 10-12 cm. This results in an average height increase of about 28 cm for boys during this growth spurt, 3 cm taller than girls, approximately 90% of their adult height, and their weight also increases to about 80-90% of their adult weight. Furthermore, girls tend to focus on fat development during puberty, while boys experience rapid bone and muscle development.

Due to their rapid growth and development, meeting their nutritional needs is crucial. During this period, their requirements for calories, protein, and other nutrients are at their highest. In puberty, adolescent males require energy from food for growth and development, and their increased basal metabolic rate and physical activity also necessitate a greater energy intake. Therefore, their daily diet must ensure sufficient calories and protein. When planning high-calorie, high-protein meals for adolescents, the principle of a balanced diet and comprehensive nutrition should be followed. This includes considering their needs for calories, protein, and carbohydrates, as well as ensuring adequate intake of various vitamins and minerals. A wide variety of foods should be chosen, and the combination of staple and side dishes should be appropriate.

Boys tend to have stronger appetites and larger food intakes than girls during puberty, making grain intake crucial. Grains include rice, wheat flour, millet, corn, and sweet potatoes. Grains are a primary source of energy for the human body, and they also provide a significant proportion of protein, minerals, and B vitamins in the diet. Grains are widely available, economical, and an important part of the daily diet for Chinese adolescents. Generally, adolescents aged 13-17 should consume no less than 500 grams of staple foods per day; otherwise, adverse consequences will inevitably occur over time. Animal products such as chicken, fish, pork, beef, eggs, and dairy products are the best sources of protein. During puberty, adolescent males experience rapid physical growth, with various tissues, organs, and muscles developing and increasing in size, requiring a large amount of high-quality protein to build tissues and promote growth. Given my country's actual conditions, if animal products cannot provide sufficient daily intake, soybeans, which are abundant in my country, should be used to obtain plant protein to ensure the daily protein requirements of adolescents. Therefore, regular consumption of soy products can improve dietary variety, increase nutrition, and is very economical.

In addition to grains and animal products, boys should also pay attention to eating more seafood, vegetables, and fruits. Because boys' bones develop rapidly during puberty, they should eat more foods rich in calcium, phosphorus, and other minerals, such as dried shrimp, kelp, dairy products, and soy products. They should eat 400-500 grams of fresh vegetables daily to ensure adequate intake of vitamins, minerals, and fiber. Some boys have good appetites and prefer fried foods, especially the high-fat, high-sugar, and high-protein foods from various Chinese and Western fast food restaurants, such as fried chicken, hamburgers, sandwiches, and ice cream. However, long-term overconsumption of these fast foods is harmful to health. Overeating damages the spleen and stomach, affects the intake of other foods, and is a contributing factor to obesity and an increased risk of cardiovascular disease in adulthood. Therefore, to lay a good foundation for health, proper nutrition during puberty is crucial.