《素问》曰∶因而强力，肾气乃伤，高骨乃坏。注云∶强力，入房也。强力入房则精耗，精耗则肾伤，肾伤
则髓气内枯，腰痛不能俯仰。
《黄帝经》云∶急守精室勿妄泄，闭而保之可长活。
书云∶阴痿不能快欲，强服丹石以助阳，肾水枯竭，心火如焚。五脏干燥，消渴至近。讷曰∶
少水不能灭盛火，或为疮疡。
强勉房劳者，成精极体瘦， 羸惊悸，梦遗便浊，阴痿里急，面黑耳聋。
真人曰∶养性之道，莫强所不能堪尔。
抱朴子曰∶才不迨，强思之；力不胜，强举之，伤也。甚矣，强之一字，真戕生伐寿之本。
夫饮食，所以养生者也。然使醉而强酒，饱而强食，未有不疾以害其身，况欲乎？欲而强，元精
去，神气散，戒之！
书云∶饱食过度，房室劳损，血气流溢，渗入大肠，时下清血腹痛，病名肠 。
大醉入房，气竭肝伤。丈夫则精液衰少，阴痿不起；女子则月事衰微，恶血淹留，生恶疮。
燃灯烛行房，终身之忌。忿怒中尽力房事，精虚气损，发为痈疽。恐惧中入房，阴阳偏虚，
发厥，自汗盗汗，积而成劳。
远行疲乏入房，为五劳虚损。月事未绝而交接生白驳。又冷气入内，身面痿黄，不产。金疮
未瘥而交会，动于血气，令疮败坏。忍小便入房者得淋，茎中痛，面失血色，或致胞转，脐下急痛死。
或新病可而行房，或少年而迷，或老人而不能节减，妙药不能顿服，因而致患。岁月将深，
直待肉尽骨消，返冤神鬼，故曰∶油尽灯灭，髓竭人亡；添油补髓，勉强何干？鬼魅来侵，总是
自招其祸。
交接输泻，必动三焦心脾肾也。动则热而欲火炽，因入水，致中焦热郁发黄，下焦气盛额黑，
上焦血走随瘀，热行于大便黑溏。男女同室而浴者，多病此。
服脑麝入房者，关窍开通，真气走散。重则虚眩，轻则腹泻。
《本草》云∶多食葫入房，伤肝，面黑无光。（葫即蒜也。）
书云∶入房汗出，中以劳风。赤目当忌房事，免内障。时病未复，犯者舌出数寸死。
《三国志》子献病已瘥。华陀视脉曰∶尚虚未复，勿为劳事。色复即死，死当舌出数寸。其
妻从百里外省之，止宿交接，三曰病发，一如陀言，可畏哉！
《素问》说：如果因为过度用力（强力），肾气就会受损，支撑脊柱的高骨（指腰椎部位）就会败坏。注释说：强力，指的是行房事。强行进行房事会导致精气耗损，精气耗损则肾脏受伤，肾脏受伤则骨髓之气在内枯竭，出现腰痛且不能弯腰或直立。
《黄帝经》说：急切地守住精室不要妄自泄精，封闭并保养它就可以长久存活。
书中说：阳痿而不能满足性欲，强行服用丹石类药物来助阳，会导致肾水枯竭，心火像焚烧一样旺盛。五脏干燥，导致消渴病临近。讷氏说：少量的水不能扑灭旺盛的火，或者会引发疮疡。
勉强进行房劳的人，会形成“精极”证，身体消瘦，惊悸，梦中遗精，小便浑浊，阳痿且腹部拘急，面色发黑，耳聋。
真人说：养生的道理，在于不要勉强去做自己承受不了的事情。
抱朴子说：才力达不到却强求思考；体力不足以胜任却强求举重，都会造成伤害。“强”这个字，确实是残害生命、削减寿命的根本原因。
饮食，是用来滋养生命的。然而如果喝醉了还强行饮酒，吃饱了还强行进食，没有不因此生病而伤害身体的，何况是房事呢？房事中强行施为，元精离去，神气散失，必须警惕！
书中说：饱食过度，加上房事劳累损伤，气血运行溢出，渗入大肠，时常排出清血并伴有腹痛，这种病名叫肠澼。
大醉后行房，会导致气竭肝伤。男子则精液衰少，阳痿不起；女子则月经衰退微弱，恶血滞留，产生恶疮。
点着灯烛行房，是一辈子的禁忌。在愤怒中尽力行房，会导致精气虚弱、气机受损，发展为痈疽。在恐惧中行房，会导致阴阳偏虚，发生厥逆，自汗和盗汗，积久形成劳损。
远行后疲乏时行房，会导致五劳虚损。月经未结束就进行性交，会生出白驳病（白癜风）。另外冷气进入体内，导致身面萎黄，无法生育。金创（刀箭创伤）未痊愈就进行性交，扰动血气，使伤口败坏恶化。憋住小便行房的人会得淋证，尿道疼痛，面色失去血色，或者导致膀胱扭转，脐下急痛而死。
或者刚病愈就进行房事，或者年轻人沉迷不知节制，或者老年人不能减少欲望，妙药不能立刻见效，因而导致患病。岁月逐渐加深，直到肉尽骨消，反而怨恨鬼神，所以说：油尽灯灭，髓竭人亡；想要添油补髓，勉强行事有什么用？鬼魅来侵，总是自己招致的祸患。
性交射精，必定会触动三焦、心、脾、肾。触动后则发热且欲火炽盛，如果此时入水（洗澡或接触冷水），导致中焦热郁发黄，下焦气盛额头发黑，上焦血液随瘀滞运行，热邪下行导致大便黑溏。男女同室沐浴的人，多患此病。
服用脑麝（脑子、麝香等开窍药）后行房，关窍开通，真气走散。严重的会出现虚眩，轻的会出现腹泻。
《本草》说：多吃胡蒜后行房，会伤肝，面色发黑无光泽。（胡蒜即大蒜。）
书中说：行房出汗后，容易遭受劳风邪气侵袭。眼睛发红应当禁忌房事，以免导致内障眼病。时病（急性传染病）未恢复，犯禁者舌头伸出数寸而死。
《三国志》记载：子献的病已经痊愈。华佗诊脉后说：身体尚虚未复，不要从事劳累之事。如果再次行房就会死，死的时候舌头会伸出数寸。他的妻子从百里之外探望他，留宿并进行了性交，三天后病情发作，完全像华佗所说的那样，真令人畏惧啊！
The *Suwen* (Plain Questions) states: If one engages in excessive physical exertion (*Qiangli*), the Kidney Qi will be injured, and the high bones (referring to the lumbar region) will deteriorate. The commentary notes that "excessive exertion" refers to sexual intercourse. Forcing sexual intercourse leads to the depletion of Essence (*Jing*); depletion of Essence injures the Kidneys; injury to the Kidneys causes the Marrow Qi to wither internally, resulting in lower back pain and an inability to bend or straighten the body.
The *Huangdi Jing* (Yellow Emperor's Classic) states: Urgently guard the Essence chamber and do not leak it recklessly; by closing and preserving it, one can achieve longevity.
Books state: In cases of impotence where sexual desire cannot be satisfied, forcibly taking cinnabar and stone minerals to aid Yang will deplete Kidney Water, causing Heart Fire to burn like a flame. The Five Zang organs become dry, leading to Xiao Ke (Wasting and Thirsting syndrome). Ne states: A small amount of water cannot extinguish a raging fire, potentially leading to sores and ulcers.
Those who force themselves into sexual labor develop the condition of "Extreme Exhaustion of Essence" (*Jing Ji*), characterized by emaciation, palpitations and fright, nocturnal emission, turbid urine, impotence with abdominal urgency, dark complexion, and deafness.
The True Person says: The way of nurturing life is not to force oneself beyond what one can endure.
Baopuzi says: If talent is insufficient but one forces thinking; if strength is inadequate but one forces lifting, injury occurs. Indeed, the character "force" (*Qiang*) is truly the root of destroying life and reducing longevity.
Diet and drink are for nourishing life. However, forcing alcohol when drunk, or forcing food when full, invariably leads to illness and harm to the body, let alone forcing sexual activity. Forcing sexual activity causes Yuan Jing (Original Essence) to depart and Shen Qi (Spirit Qi) to scatter; this must be guarded against!
Books state: Overeating combined with sexual fatigue causes Qi and Blood to overflow and seep into the Large Intestine, resulting in frequent passage of clear blood accompanied by abdominal pain; this disease is named Chang Pi (Intestinal Dysentery).
Having sex while heavily intoxicated exhausts Qi and injures the Liver. Men suffer from decreased semen and impotence; women suffer from diminished menstruation, retention of evil blood, and the development of malignant sores.
Engaging in intercourse with lamps or candles lit is a lifelong taboo. Forcing sexual activity while angry damages Essence and Qi, leading to carbuncles and sores. Engaging in intercourse while fearful causes Yin and Yang to become deficient on one side, leading to Jue Ni (cold extremities/fainting), spontaneous sweating, night sweats, and eventually chronic exhaustion.
Engaging in intercourse after long travel and fatigue results in the Five Excesses and Deficiency Damage. Having intercourse before menstruation has ceased causes Bai Bo disease (vitiligo). Additionally, cold qi enters the interior, causing sallow complexion and infertility. Having intercourse while metal wounds (lacerations) have not healed disturbs Qi and Blood, causing the wound to deteriorate. Holding urine during intercourse leads to Lin Syndrome (dysuria), pain in the urethra, loss of facial color, or bladder torsion causing acute pain below the umbilicus and death.
Either engaging in intercourse immediately after recovery from illness, young people indulging without restraint, or elderly people failing to reduce desires—miraculous medicines cannot take effect instantly, thus leading to disease. As time passes, until flesh disappears and bones waste away, one may resent spirits and ghosts; thus it is said: When oil is exhausted, the lamp goes out; when marrow is depleted, the person dies. To add oil and replenish marrow, what use is forced effort? Invading demons and ghosts are always disasters self-attributed.
Ejaculation during intercourse inevitably moves the San Jiao (Triple Burner), Heart, Spleen, and Kidneys. Movement generates heat and blazes desire fire; if one then enters water (bathes or contacts cold water), it causes middle Jiao heat stagnation and jaundice, excess Qi in the lower Jiao with blackening of the forehead, and upper Jiao blood stasis with dark, loose stools due to heat moving downward. Men and women bathing together often suffer from this.
Taking Nao She (Camphor and Musk, aromatic opening agents) before intercourse opens the orifices and scatters True Qi. Severe cases result in deficiency vertigo; mild cases result in diarrhea.
The *Bencao* (Materia Medica) states: Eating too much garlic before intercourse injures the Liver, causing a dark, lusterless complexion. (Garlic here refers to Allium sativum.)
Books state: Sweating during intercourse makes one susceptible to Lao Feng (Wind caused by fatigue). Red eyes should avoid intercourse to prevent internal eye obstructions. Violating abstinence during the recovery phase of acute diseases leads to death with the tongue protruding several inches.
The *Records of the Three Kingdoms* records: Zi Xian's illness had healed. Hua Tuo examined his pulse and said: "He is still deficient and not yet recovered; do not engage in strenuous activities." If he engages in sexual activity again, he will die, and upon death, his tongue will protrude several inches. His wife traveled a hundred li to visit him, stayed overnight, and they engaged in intercourse. Three days later, the illness returned exactly as Hua Tuo predicted. How terrifying!