您總是感到飢餓嗎?可能是這些原因

It's normal to feel hungry after not eating for a few hours, but persistent hunger after eating may indicate a medical problem.

There is a problem with your health

Frequent hunger may indicate an underlying health problem such as diabetes, hyperthyroidism, hypoglycemia, premenstrual syndrome, or a mental health issue such as depression. Please consult your doctor for diagnosis and treatment.

diabetes

Diabetes prevents glucose from reaching cells, causing increased urination and food cravings. Despite increased food consumption,

People with type 1 diabetes may still lose weight. Symptoms include excessive thirst, frequent urination, unexplained weight loss, blurred vision, slow wound healing, and tingling or pain in the extremities. Fatigue may also be present.

Hypoglycemia

Hypoglycemia, or hypoglycemia, occurs when blood sugar levels drop. This is common in diabetes, but can also be caused by other health problems, such as hepatitis, kidney disease, insulinoma, or problems with the adrenal gland or pituitary gland. Severe cases may have symptoms such as slurred speech, difficulty walking, anxiety, palpitations, pale skin, tremors, sweating, and tingling around the mouth.

you are taking certain medications

Certain medications, such as antipsychotics, antidepressants, some diabetes medications , corticosteroids, anti-seizure medications, and certain birth control pills, may have the side effect of increasing your appetite. If you think your medication is causing excessive hunger, talk to a health care professional as there may be other options.

There are some drugs that make you want to eat. They are called appetite stimulants:

  • megestrol
  • Dronabinol
  • Oxandrolone
  • Mirtazapine
  • prednisone
  • Cyproheptadine
  • Valproic acid
  • Olanzapine
  • marijuana

you are too stressed

Excessive and chronic stress , anxiety, or tension can increase levels of a hormone called cortisol, which increases appetite and thus promotes hunger and food cravings. Many people under stress also crave foods high in sugar, fat, or both. It could be your body trying to "turn off" the part of your brain that's causing you worry.

you ate too fast

Several research reviews suggest that eating more slowly and chewing more per mouthful may increase feelings of fullness and reduce appetite. However, some studies have found no association between eating speed and satiety. Chewing slowly increases awareness of eating, giving the body and brain more time to release anti-hunger hormones and signal satiety. These tips are part of mindful eating. Other tips for reducing hunger include taking deep breaths before meals, pausing between bites, and chewing more.

You eat too many refined carbohydrates

Refined carbohydrates are highly processed foods that lack fiber, vitamins and minerals. They are quickly digested and converted into glucose, causing an increase in blood sugar and insulin levels. Insulin removes sugar from the blood, causing blood sugar levels to drop suddenly and signaling the need for more food.

To reduce your intake of refined carbohydrates, choose nutrient-dense, whole foods such as vegetables, fruits, legumes, and whole grains, which are high in fiber and help control hunger.

lack of sleep

Not getting enough rest affects the hormones in the body that control hunger, lowering leptin levels and increasing ghrelin levels, which affects appetite. You're also more likely to crave high-fat, high-calorie foods when you're tired. It is recommended for adults to sleep at least 7 hours a night.

Distracted while eating

Distractions while eating, such as while traveling, using electronics, or talking, are associated with increased appetite, calorie intake, and weight gain. Research suggests that impaired sensory awareness is one reason, as multitasking affects the amount of energy the brain allocates to each task, making it more difficult to recognize satiety signals. It can also affect the sense of taste and lead to more frequent, larger meals.

Too many calories in liquid

Liquid foods, such as meal replacement shakes, are more likely to make you feel full than solid foods because they are digested more quickly. This may lead to a tendency toward increased hunger. Likewise, sugary drinks may not satisfy hunger and may prompt people to snack more frequently. Research shows that liquid foods are less effective at suppressing hunger hormones than solid foods. Additionally, the less time required to consume liquids may lead to overeating because the brain is unable to receive satiety signals. Incorporating more solid, whole foods into your diet may help prevent persistent hunger.

you drink too much

Alcohol can stimulate appetite by affecting the judgment, desire and reward centers of the brain. A recent study showed that alcohol increases food cravings and overall food consumption. Even small amounts of alcohol can lead to the intake of more food because it does not provide a feeling of fullness. Drinking alcohol before or after a meal is associated with higher calorie intake. To minimize the impact on hunger, moderation or abstinence from alcohol is recommended.

you don't drink enough water

Drinking enough water has many health benefits for the brain, heart, skin and digestive system. Research shows that drinking water before meals can reduce caloric intake. One study found that participants who drank 2 glasses of water consumed nearly 600 calories. Dehydration can be mistaken for hunger, so drinking water between meals may help suppress your appetite. Health experts recommend adults drink 6-8 glasses of water a day, and eating water-rich foods can also help replenish your body.

Your diet is low in fat

Fat takes longer to digest and stays in the stomach longer. It also triggers the release of hormones that create a feeling of satiety. High-fat foods, such as coconut oil, fatty fish, walnuts, and avocados, can help you feel fuller longer.

Your diet lacks protein

Weak hair and nails are often the first sign of protein deficiency. Feel weak or hungry as protein provides energy and satisfies appetite.

Your diet lacks fiber

Fiber helps regulate gastric emptying and increases satiety, keeping you fuller longer. High fiber intake affects the release of appetite-reducing hormones and the production of short-chain fatty acids. Soluble fiber absorbs water and turns into a gel-like substance, making you feel fuller more easily than insoluble fiber.

you exercise a lot

Frequent exercise leads to high calorie burning. Resistance exercise can increase your basal metabolic rate (BMR), which is the number of calories your body burns during basic functions. Research shows that intense exercise can increase your metabolic rate the next day , which may lead to increased hunger. Long-term exercise can also increase appetite due to effects on hormonal and energy-regulating systems. However, research on the effect of exercise on basal metabolic rate is inconsistent, with one study involving overweight or obese adolescents finding no effect of exercise on basal metabolic rate. To prevent excessive hunger, athletes who exercise vigorously or for long periods of time can eat foods high in fiber, protein, and healthy fats. Moderately active individuals may not need to increase their caloric intake.

Review

All comments are moderated before being published

HealthyPIG Magazine

View all
經痛治療點解咁多年都冇突破?最新方法、本地現況與未來方向

經痛治療點解咁多年都冇突破?最新方法、本地現況與未來方向

幾乎一半嘅世界人口,每個月都要面對一次——月經同經痛。由青春期到更年期,呢段時間長達三十幾年。雖然經痛唔係致命疾病,但對好多女性嚟講,每個月都係一次痛苦嘅循環,影響工作、學業同生活質素 [1]。咁問題嚟喇:點解咁多年嚟,經痛治療仲係停留喺熱水袋同布洛芬(ibuprofen)?

Celecoxib(西樂葆)介紹 — 藥理、歷史背景與臨床試驗

Celecoxib(西樂葆)介紹 — 藥理、歷史背景與臨床試驗

1. 藥物簡介與臨床用途 Celecoxib(商品名 Celebrex 等)係一種選擇性 COX-2 抑制劑,屬非類固醇抗炎藥(NSAID)。COX-2 喺炎症反應中會誘導前列腺素生成,從而引發疼痛及發炎;而 Celecoxib 有效抑制 COX-2,但對 COX-1 影響較少,因此相對常見 ...
用粟粉醃肉有乜科學根據?揭開中菜「滑肉」嘅秘密

用粟粉醃肉有乜科學根據?揭開中菜「滑肉」嘅秘密

前言:點解中餐炒肉咁滑? 好多香港人炒肉嘅時候都會發現,餐廳啲雞絲牛柳炒出嚟特別滑溜、唔鞋口。呢個秘密,唔喺高級食材,而係一個平凡但強大嘅材料——粟粉(Cornstarch)。 呢種技巧叫做**「走油前醃」或「滑油醃肉法」(Velveting)**,係中餐獨有技術之一,主要靠粟粉、蛋白、調味料...
咩係三價鐵(Fe³⁺)同二價鐵(Fe²⁺)?

咩係三價鐵(Fe³⁺)同二價鐵(Fe²⁺)?

當我哋講「鐵質」時,唔止係話有冇攝取足夠,而係講緊鐵喺人體內唔同形態(尤其係三價鐵 Fe³⁺ 同二價鐵 Fe²⁺)點樣被吸收、轉化、運輸同儲存,呢啲都深深影響生物可利用率

全面解構低鐵原因、病理機制及影響

全面解構低鐵原因、病理機制及影響

低鐵唔止係營養問題,仲可能係身體慢性警號

鐵質(iron)係人體不可或缺嘅微量元素,主要負責攜帶氧氣嘅血紅素(hemoglobin)製造、能量代謝、免疫調節等。當鐵質長期攝取不足、吸收差、或失去過多,就會導致「低鐵」(iron deficiency)甚至發展成「缺鐵性貧血」(iron deficiency anemia)。本文將從臨床醫學與分子生理角度,深入探討低鐵嘅成因、病理機制、生物轉化過程,以及其對人體造成嘅連鎖影響。

Obefazimod(ABX464):潰瘍性結腸炎新藥研究、作用機制與研發進展

Obefazimod(ABX464):潰瘍性結腸炎新藥研究、作用機制與研發進展

Obefazimod(又名 ABX464)係由法國生物科技公司 Abivax 開發嘅口服小分子創新藥,目標治療慢性發炎性腸道疾病(IBD),特別係潰瘍性結腸炎(UC)同克羅恩氏病(CD)患者。

夢遺係唔係一定關性事?

夢遺係唔係一定關性事?

夢遺,即係在無意識之下於睡眠中射精,係一種常見於青春期男生甚至成年男性身上的自然生理現象。夢遺唔等於一定發生性夢,也唔等於有性慾過強。它與睡眠週期中快速動眼期(REM sleep)嘅勃起模式有關,亦可能反映正常的荷爾蒙波動及精液排出節律。 咩係夢遺? 夢遺(nocturnal emission...
唔凍都會打冷震?

唔凍都會打冷震?

打冷震(shivering)唔一定因為天氣凍,喺情緒波動、發燒初期、焦慮、緊張等情況下都可以出現。打冷震係一種由大腦下視丘控制嘅「非意識性肌肉收縮」,目的係維持或調節核心體溫或應對突發壓力。了解打冷震背後嘅神經與體溫調節原理,可以幫我哋區分「正常生理反應」同「潛在疾病警號」。 打冷震係乜回事...
一緊張就流手汗?

一緊張就流手汗?

手掌汗腺主要受交感神經系統控制。當人面對壓力、驚訝、社交場合等刺激時,大腦會啟動「戰鬥或逃跑反應」,促使手掌、腳底等部位產生明顯出汗。這種情況屬於精神性出汗,與溫度無直接關係,係身體對外在壓力的自然反應。