What are the symptoms of early cancer? What are the early signs of cancer? According to experts, there are almost no symptoms in the early stage of cancer, so regular physical examination is necessary. If symptoms appear, it may be in the middle and late stages. Due to the change of diet structure, the increase of work pressure and the infection of Helicobacter pylori, gastric cancer tends to be younger. The five-year survival rate of early gastric cancer is generally above 90%, and it may be less than 10% in late stage. It is suggested that people with bad living habits and family history must be screened for cancer prevention.
How to prevent cancer? Bad living habits and changes in environmental factors have become the main high-risk factors for cancer. A balanced diet, regular exercise, keeping a normal weight, staying away from alcohol and tobacco, having healthy living habits and a good mental state, and mastering scientific common sense of cancer prevention can reduce the incidence of cancer by 40%.
Doing housework can reduce the risk of breast cancer. Professor Tim Chiy, an epidemiologist at the British Cancer Institute in Oxford University, and his colleagues found that spending six hours a day doing housework, walking fast or planting flowers and vegetables can reduce the risk of breast cancer in women 13%. Exercise for 2.5 hours a day can reduce the risk of breast cancer by 8%. However, it is worth reminding that in a previous study, the US Environmental Protection Agency found that the use of a solvent called tetrachloroethylene in the traditional dry cleaning process may lead to liver cancer, kidney cancer and leukemia. Therefore, it is recommended to do less dry cleaning and wash clothes by hand with mild laundry detergent.
Drink less alcohol to prevent esophageal cancer. A recent study by Lund University in Sweden found that if men over 45 drink less or even don't drink, they can reduce the risk of esophageal cancer by 50%. If you eat more fruits and vegetables, you can prevent this cancer.
Eat less sausages and barbecues. British scientists have found that regular consumption of processed meat, such as bacon and sausage, will greatly increase the risk of intestinal cancer, especially for men. Dr Rachel Thompson of the World Cancer Research Foundation, who is in charge of this research, said: "The intake of processed meat should be controlled within 70g per week (equivalent to the weight of three slices of bacon)". If you want to eat barbecue, it is best to marinate it with lemon juice 1 hour before roasting.
Eat less sugar and drink less sweet drinks. The favorite "food" of cancer cells is sugar. A study in Japan pointed out that when blood flows through a tumor, about 57% of its blood sugar will be consumed by cancer cells and become a nutrient to nourish it. The American Journal of Clinical Nutrition also reported that as long as you drink two sweet drinks a day, the risk of pancreatic cancer will be 90% higher than that of people who don't drink.
The less you use your mobile phone, the better. The International Agency for Research on Cancer (IARC) under the World Health Organization announced that after a week of concentrated research on the scientific data related to the use of mobile phones and brain tumors, it decided to list the RF electromagnetic fields used by mobile phones as "possible carcinogens". Users are advised to use headphones as much as possible to avoid the phone being close to the head for a long time.
Avoid unnecessary radiological examination. David Brenner, a medical physicist at Columbia University in the United States, once published a paper in the New England Journal of Medicine, saying that in the past few decades, as many as 2% of cancer cases in the United States may be caused by radiation from CT scans. Long-term accumulation of radiation will bring greater harm to health.
Lemon tea can prevent skin cancer. Researchers at Rutgers University in the United States found that if the peels of citrus fruits were added to the tea, the chances of drinkers suffering from skin squamous cell skin cancer would be reduced by about 70%. Citric acid contained in lemon can prevent and eliminate skin pigmentation. It should be noted that hot tea must be used. Frozen tea is not as effective as hot tea in preventing skin cancer.
Eat with garlic. Professor Earl Harrison of Ohio University Cancer Center said: "We found through urine tests that the more garlic we eat, the less potential carcinogens there are in our bodies." However, high temperature will destroy alliin, the most important anticancer substance in garlic, so it is suggested that crushed garlic be placed for 15 minutes before cooking.
In addition, quitting smoking or rejecting second-hand smoke can help reduce the risk of lung cancer; Maintaining healthy and balanced eating habits can prevent digestive tract tumors such as colorectal cancer and gastric cancer. Hepatitis B vaccine injection can effectively reduce the incidence of liver cancer, and cervical cancer vaccine is the only tumor vaccine at present, which is an effective means to prevent cervical cancer.
How to face cancer? Face it correctly and get rid of contempt and fear.
At present, there is still a big gap between the five-year survival rate and early diagnosis rate of malignant tumors in China and western developed countries, which is related to people's misunderstanding of tumor prevention and treatment. Clinically, two common attitudes towards cancer will affect the quality of life of patients.
The first is "contempt for tumors." I am very confident in my health or I am afraid of medical treatment. I don't think that diseases such as tumors will "provoke" me, so I ignore the abnormal signals of my body and refuse the necessary screening and physical examination, which leads to the delay of early diagnosis and treatment of tumors. If you are unfortunate enough to suffer from a tumor with early occult manifestations, it will be more difficult to obtain a good therapeutic effect. Keeping a healthy lifestyle, knowing your own high-risk factors, regular preventive consultation and individualized cancer check-up every year are all effective ways to actively prevent and control cancer and improve the early diagnosis rate.
The second is "fear of tumor". When you find out that you have a tumor, you are too scared, and the degree of mental breakdown far exceeds the trauma suffered by your body, so you can't cooperate with the doctor well. It is not a doctor's psychological comfort to say that the tumor is a chronic disease. The World Health Organization has long listed cancer as a preventable and treatable chronic disease, but ordinary people do not understand it and still regard all cancer diseases as "terrible". In fact, with the progress of medicine, relying on scientific and standardized treatment, a considerable number of cancer patients can return to work and achieve normal life like patients with common chronic diseases such as hypertension and diabetes. Treating tumor as a chronic disease is the first step for patients to face their own situation scientifically and actively cooperate with doctors.