A recent study suggests that people who donate blood regularly may have genetic changes in their blood that could in fact reduce the risk of developing cancer. It is conducted by the researchers at the Francis Crick Institute, and the study has now provided new insights into how and why blood cancers develop. The study is published in the journal Blood and was conducted by the scientists from Heidelberg and the German Red Cross blood donation center. There is yet a need for further research to confirm these findings.

What Did The Study Find?

The researchers examined the blood of two groups of healthy male donors in their 60s:

• One group had donated blood three times a year for 40 years.
• The other group had donated only about five times in total.

The goal was to analyze genetic mutations in their blood and assess whether frequent donation had any impact on their genetic makeup.

How Can Blood Donation Affect Stem Cells?

As and when people age, their blood and other cells naturally develop mutations and some of them can also increase the risk of cancer. When anyone donates blood, his or her body compensates by producing new blood cells, which can influence the genetic diversity of stem cells in the bone marrow. The study also found that both groups had a similar number of mutations. For instance the frequent donors had 217 mutations, while the irregular donors had 212 mutations.

However, the nature of these mutations differed. In the frequent donors, 50% of the mutations were of a type not associated with a high risk of blood cancers, compared to only 30% in the irregular donors.

Further laboratory analysis showed that these specific mutations behaved differently from those linked to leukemia, a type of blood cancer. When human blood stem cells with these mutations were injected into mice, they were found to be highly effective at producing red blood cells, which is considered a positive outcome.

Dr. Hector Huerga Encabo, one of the study authors, emphasized that these mutations do not indicate an increased risk of leukemia. The findings suggest that regular blood donation may influence how stem cells evolve, but whether this translates into a lower cancer risk remains uncertain.

Read More: Who Can Donate Blood To Whom?

Limitations

One notable disadvantage is the "healthy-donor effect"—because blood donors are often healthier than the general population, their lower cancer risk could be unrelated to blood donation.

Dominique Bonnet, senior researcher and head of a stem-cell laboratory at the Francis Crick Institute, stressed the need for larger studies with female volunteers to confirm the findings.

Despite ongoing research into potential health benefits for donors, the primary goal of blood donation remains saving lives. NHS Blood and Transplant emphasized that while the study is interesting, further research is required to draw firm conclusions. The organization also noted that blood supplies are currently critically low and encouraged eligible individuals to donate.

Also Read: How Long After a Tattoo or Piercing Can I Donate Blood?

There are many conditions that barely show any symptoms, however, they can have devastating effects on our health. Conditions like high cholesterol often do not have symptoms, however, overtime it can increase our risk of developing heart conditions.

New research suggests that people with diabetes who don't manage their blood sugar are three times more likely to develop serious eye problems later in life. Experts followed the health of over 5,600 people in England, averaging 66 years old, for 14 years to reach this conclusion.

Link Between Blood Sugar and Eye Health

The study published in the BMJ found that individuals with uncontrolled diabetes (meaning their blood sugar levels were too high at the study's start) had a 31% risk of developing diabetic eye disease. This is a stark contrast to the 9% risk seen in participants whose diabetes was well-controlled, with glucose levels in the normal range.

Diabetic eye disease often includes diabetic retinopathy, a condition where high blood sugar damages the light-sensitive area at the back of the eye called the retina. The research also linked high blood sugar levels—above 6.5% on an HbA1c test (which measures average blood sugar over two months)—to an increased risk of other eye conditions like glaucoma and macular degeneration.

Why This Matters

Researchers highlighted the importance of these findings, especially as the number of people being diagnosed with diabetes continues to grow rapidly. They noted that the proportion of working-age individuals with a diabetes diagnosis more than doubled in the 2000s.

According to the World Health Organization, 830 million people worldwide have diabetes, many of whom live in low to middle-income countries. Most people living in these conditions often do not have proper treatment available to them, and the number of people living with untreated diabetes has also increased steadily over the past decade.

The research emphasizes how crucial it is for people with diabetes to be diagnosed and to receive support in managing their condition. This support can significantly reduce their chances of developing potentially serious eye disease. The study also underscored the importance of getting a diabetes diagnosis. People with diabetes who hadn't been diagnosed faced a higher risk of eye problems compared to those whose condition was known and managed.

Eye Care and Diabetes Testing

Researchers highlighted the importance of eye examinations for older individuals, particularly those with a diabetes diagnosis. They also noted that the findings support more widespread testing for diabetes in the general public. This wider testing could help find people who don't realize they have diabetes, potentially lowering their risk of eye disease that could otherwise go unnoticed.

Experts stressed the vital importance of supporting people with diabetes to manage their condition, which helps them live well and prevent serious complications. They added that a key part of this involves having an annual review, including diabetic eye screening to catch any early signs of damage. If left untreated, this damage could lead to significant problems, including loss of sight.

Ways to Manage Your Blood Sugar

Keeping your blood sugar in check is key for good health, and there are several simple ways to do it. Eating a healthy diet, maintaining a healthy weight, and getting regular physical activity are all very helpful. Other good tips include tracking your blood sugar to understand what affects it, and eating meals at regular times without skipping any.

Choose foods that are lower in calories, unhealthy fats, sugar, and salt. Make sure to track what you eat, drink, and how active you are. It's also best to drink water instead of juice or soda, and limit alcoholic drinks (no more than two per day for men, and one for women). When you want something sweet, grab some fruit, and always control your food portions, perhaps by using the plate method to guide you.

Your memories make you and forgetting them can mean changing your entire being. Many people believe that dementia is just when you forget things, but it is a lot more than that. It not only affects your memories, but your behavior and the way you think.

Dementia, unlike what many people think it is, is a term used to define many different diseases that affect one's memory and ability to perform daily tasks. In 2021, 57 million people were affected with dementia, 60% of whom live in low- and middle-income countries with 10 million new cases. Being a cognitive degenerative disease, and it may take some time before there are symptoms and by the time you may notice them it

The earliest stage of dementia is often called "mild cognitive impairment" (MCI). This means there can be small, subtle changes in everyday behavior, even in things like how someone reads. If you've always loved to read a lot but suddenly find it hard to focus, this could be a sign that dementia might be developing.

Understanding Mild Cognitive Impairment (MCI)

Difficulty concentrating is often one of the very first noticeable changes with MCI. You might find it hard to focus on a single task, follow a TV show, or read a book, even if these activities were once easy and enjoyable for you. This persistent inability to concentrate can be a key early indicator. Other early signs can include:

Changes in mood

You might start feeling different emotionally than usual. This could mean becoming more easily frustrated, irritable, anxious, or even withdrawn from social situations, which can be unsettling for both you and your loved ones.

Confusion about time and place

You might find yourself getting mixed up about the current day of the week, the time of day, or even where you are. This can manifest as forgetting appointments or feeling disoriented in familiar surroundings, causing distress and impacting daily routines.

Struggling with conversations

Following a group discussion or finding the right words to express yourself can become noticeably harder. You might pause frequently, repeat yourself, or use filler words, making communication frustrating and affecting social interactions.

Trouble with daily tasks

Familiar everyday activities, like managing finances, cooking a known recipe, or figuring out the correct change when shopping, might become confusing or difficult to complete without errors. These slips can impact independence and daily living.

Memory loss

Forgetting things more often than before is a common concern. This might involve recently learned information, important dates, or even recurring events, leading to a noticeable increase in needing reminders or relying on others for memory support.

Common Form of Dementia

Alzheimer's disease is a very common type of dementia. It often causes memory problems, like frequently forgetting recent events, names, and faces, and leads to asking questions repeatedly. People with Alzheimer's might also find it harder to organize tasks and plans and can easily get confused in new places. They may struggle to find the right words when speaking, have difficulty with numbers or handling money, and might become more withdrawn or anxious.

Managing Dementia

While there's no cure for dementia, medicines can help with symptoms as they get worse. For Alzheimer's disease, common medications include acetylcholinesterase inhibitors and memantine.

For people with mild to moderate dementia, cognitive stimulation therapy has shown some benefits. This involves group activities designed to boost memory, problem-solving skills, and language.

Reminiscence work, which uses personal photos and music, can also help improve the mood of someone with dementia. There's also growing evidence that your diet can play a role in your chances of getting dementia.

Our lifestyle habits play an important role in how well we live. While some health concerns are more visible, silent killers like high cholesterol should always be kept an eye on because it can have serious health issues.

Keeping an eye on your cholesterol levels is really important for your health. Too much of this fatty substance in your body can be dangerous because it might block blood vessels, potentially leading to a life-threatening stroke or heart attack. Interestingly, your eyes might give you a clue if your cholesterol is too high.

Yellow Bumps Around Your Eyes

The American Association of Ophthalmology points out that if you start to see "yellow bumps around the eyes," this could be a sign of dangerously high cholesterol. These bumps are known as xanthelasma, and if you notice them, you should see a doctor right away.

That's because xanthelasma can sometimes be an early warning sign of three very serious eye conditions: age-related macular degeneration, retinal vein occlusion, and corneal arcus. The good news is a simple blood test can check your cholesterol levels, and your doctor or nurse can discuss the results with you.

Understanding Your Cholesterol Numbers

When you get your cholesterol tested, the results usually include:

• Total cholesterol: This is the overall amount of cholesterol.
• HDL (high-density lipoprotein) cholesterol: Often called "good" cholesterol.
• Non-HDL cholesterol: This is the "bad" cholesterol, and it's a key number to watch.

For a healthy person, a healthy total cholesterol reading should be below 5mmol/L. Your HDL (the good kind) should be above 1mmol/L. Most importantly, your non-HDL reading should ideally be below 4mmol/L. Your doctor might also give you a QRISK score, which estimates your risk of developing a heart or circulation problem over the next 10 years.

How Does High Cholesterol Affect Your Health?

According to the Centers of Disease Control and Prevention having too much cholesterol in your blood can cause a sticky substance called "plaque" to build up on the inside walls of your arteries. Arteries are like pipes that carry blood from your heart to the rest of your body.

Over time, as more plaque builds up, these arteries get narrower. This narrowing makes it harder for blood to flow freely to and from your heart and other important organs. When blood flow to the heart is blocked, it can cause chest pain (also called angina) or even a heart attack.

This cholesterol buildup in your arteries can also greatly increase your risk for heart disease and stroke, which are serious health problems.

What Puts You At Risk of High Cholesterol?

Some health problems, like type 2 diabetes and obesity, can raise your risk for high cholesterol. Your daily habits also play a big part. Eating foods high in unhealthy fats (called saturated and trans fats) and not moving your body enough can also increase your risk. For some people, high cholesterol runs in their family, meaning they're more likely to get it too. All these things that increase your chances are called "risk factors."

You can't change some risk factors, like your age or your family history. But you can take steps to lower your risk by changing the things you can control, like your diet and how active you are.

Simple Ways to Lower Cholesterol

The good news is that making small changes to your diet can significantly improve your cholesterol levels.

For example, instead of choosing items like meat pies or sausages, try to eat oily fish such as mackerel and salmon. You can still enjoy familiar meals; for instance, swap a meat pie for salmon served with mashed potatoes and peas. Also, opt for brown rice instead of white rice, whole grain bread instead of white bread, and wholewheat pasta.

When you're looking for snacks, choose healthier options like nuts, seeds, and fruit instead of cakes and biscuits.

Beyond diet, it's also crucial to move your body for at least 20 minutes every day. This could be a brisk walk, swimming, cycling, or playing a sport. The key is to find activities you enjoy, as you're much more likely to stick with them if you do!