Pregnancy is usually a time of happiness and hope, but it also brings in the unexpected. While there is much talk placed on the health of the expectant mother, the quality sperm coming from the father could dramatically change the outcome of pregnancy. The latest study suggests the risks of sperm DNA damage, even increasing the risks of complications preeclampsia and birth prematurity.

In a groundbreaking research study conducted by scientists from Lund University in Sweden, scientists discovered that DNA damage in sperm increases the risk almost up to double that of preeclampsia, this is a dangerous condition that may arise during pregnancies characterized by high blood pressure. In addition, DNA anomalies also increase the risk of premature births, and this further entails increased related adverse health outcomes for infants born through such conditions.

The next step would be to find out which group of men respond best to methods to prevent and treat sperm DNA damage, and to test these methods to prevent pregnancy complications," said Dr. Amelie Stenqvist, a lecturer at Lund University. According to this study, a significant message is put forward that paternal health assumes an important role in a successful pregnancy.

It focused its research on men, specifically whose sperm contained high levels of DNA fragmentation. For instance, some 20% to 30% of babies born via in vitro fertilization have fathers whose sperm contains damaged DNA. The DNA fragmentation index, an indicator to assess the percentage of DNA damage in sperm, indicated that when the percentage of sperm with a DFI above 30% was observed, they had almost no chance of resulting in natural conception. Even a DFI greater than 20% showed that the chances of getting pregnant are highly risky as the risk factor for pregnancy complications like preeclampsia is much high.

Uncommon Complications during Pregnancy

The most alarming complication during pregnancy is preeclampsia. It affects approximately 5% to 8% of pregnancies worldwide, which can cause fatal conditions for both the mother and the baby. The new findings now point out that sperm DNA damage may contribute to this condition, especially if it is due to assisted reproductive techniques such as IVF pregnancies. The research found that a DFI above 20% doubled the risk of preeclampsia from a mere 5% to almost 11% per.

Apart from causing preeclampsia, DNA fragmentation in sperm is also known to increase the risk for prematurity. Most premature babies experience respiratory, neurological, and developmental complications. Therefore, some degree of early intervention might be important for prospective parents.

Some of the rarer, though serious complications include placental abruption, which is the separation of the placenta from the uterine wall and intrauterine growth restriction, a condition by which the baby does not grow normally in the womb. These conditions though rare are potentially catastrophic both to the mother and the child. Results from this study may help in establishing the contribution of the father in such pregnancies.

Further study into sperm DNA damage is of urgent interest with regard to its consequences for pregnancy outcomes. According to Professor Aleksander Giwercman of Lund University in the field of Reproductive Medicine, "the analysis of DFI should be introduced as routine test in all fertility clinics.". "It could give answers to couples who are having difficulties with infertility, but our latest result also shows that DFI analysis can be a method to identify high-risk pregnancies, explained Giwercman.

For many, DNA fragmentation in sperm is often treatable. Common causes are oxidative stress, age, smoking, being obese, and infections. Addressing these elements will likely reduce DNA damage in sperm for men, raising the chances for a healthy pregnancy and baby.

Overall, the study importance should take into consideration paternal as well as maternal health towards reaching for a healthy pregnancy. Though DNA fragmentation in the sperm is supposed to increase the risk factors for complications in pregnancies, the advances into novel treatment approaches and tests are likely to alleviate complications in many families. Thus the findings of this study offer optimism and pave a pathway to more holistic fertility treatments in the future.

When people think of Alzheimer's specifically, memory loss is usually the first thing that comes to mind — forgetting recent conversations, repeating questions, struggling to recall familiar names. But Alzheimer's rarely announces itself through memory alone. It can also show up in how a person communicates, makes decisions, behaves, and manages the everyday tasks that once came naturally. People often mistake dementia and Alzheimer's for the same thing; however, dementia is not a single disease but a broad term for a decline in memory, thinking, and reasoning severe enough to interfere with daily life. Alzheimer's disease is the most common cause of dementia, accounting for a majority of cases.

Signs Families Often Misread

These early changes are easy to misattribute. A person who withdraws from social life may seem to be "losing interest." Someone who grows irritable may be written off as difficult or set in their ways. A family member who lets bills slide may appear distracted rather than unwell. Only when such shifts persist and clearly depart from a person's usual character do they warrant closer attention.

Communication And Language

Difficulty finding a familiar word now and then is normal. But losing the thread of a conversation, or struggling to express thoughts that once came easily, is different — and when this worsens over time, it's often family and friends who notice first.

Judgement And Everyday Decision-Making

Independence can erode quietly. Someone who has handled the household finances for decades may start making uncharacteristic decisions or find bills confusing. Following a familiar recipe, managing medication schedules, or planning a routine outing may become surprisingly hard. Family members frequently pick up on these lapses in judgement before they notice any memory trouble at all.

Behaviour And Personality

A once-sociable person may pull back from hobbies and company. Others may become anxious, suspicious, or emotionally distant in ways that feel out of character. These shifts can be hard for loved ones to make sense of — especially when they seem intentional — but they often reflect real changes in how the brain is processing and responding to the world, not a change in who someone chooses to be.

Daily Functioning

There's a meaningful difference between misplacing your keys occasionally and repeatedly leaving objects in strange places with no memory of how they got there. Likewise, forgetting one appointment is ordinary; missing commitments again and again despite reminders is not. Trouble navigating familiar streets, preparing a simple meal, or keeping up with personal care can point to a broader change in cognitive function.

Not A Diagnosis In Itself

None of these changes automatically means Alzheimer's. Many have other causes — some of them treatable — which is exactly why a medical assessment matters: it helps identify what's actually going on and whether further evaluation is needed.

What helps: Patterns, Not Incidents

For families, tracking patterns is far more useful than reacting to isolated moments. When did the changes start? How often do they happen? Are they starting to affect independence? This kind of observation gives doctors much more to work with than a single anecdote.

How families respond matters too. Correcting or criticising someone for changes they can't control tends to breed frustration on both sides. A patient, supportive approach protects their dignity while making it easier to get them the care they need.

Alzheimer's, in short, is not only a disease of memory. Its earliest clues can surface in conversation, judgement, behaviour, or the small routines of daily life. Recognising these signs isn't about assuming the worst — it's about noticing when something is genuinely different, and knowing when that difference is worth a doctor's opinion.

By Dr. Tanushree Chawla, Neurologist, PB Health

For decades, childhood vaccination was one of the clearest public health success stories in Europe. But a new study published in The Lancet Regional Health—Europe, suggests that progress has started to slip, and in some countries, it has slipped quite noticeably.

The research led by a team from the Università Cattolica del Sacro Cuore in Rome looked at vaccination coverage across seven different vaccines in European Union countries, tracking data all the way from 1980 to 2024. What it found was not a sudden collapse, but something arguably more concerning: a slow, steady stall that has crept in over the last few years without much attention.

Which Childhood Vaccine Rates Dropped?

According to the research, recent declines were most widespread for vaccines against

• Hemophilus influenzae type b
• polio,
• hepatitis B
• diphtheria-tetanus-pertussis.

Where the Decline Is Happening

Since 2019, sixteen countries have seen vaccination rates drop for four or more of the vaccines studied. Bulgaria, Cyprus, Ireland, the Netherlands, Romania, and Sweden stood out in particular, with all seven vaccines showing a downward trend in recent years.

The pattern wasn't uniform everywhere, though. Germany and Spain saw declines in five of the seven vaccines, while France and Italy told a more mixed story, with four vaccines improving even as three others slipped.

At the higher end, Luxembourg and Portugal managed to maintain at least 95 percent coverage across all seven vaccines, a benchmark most countries are still trying to reach. Romania, on the other hand, fell below 80 percent, making it the lowest performer in the study.

Why This Is Happening Now

According to the researchers, the timing of this decline is not a coincidence. Most of it began somewhere between 2019 and 2022, a period that overlaps almost exactly with the Covid-19 pandemic and its aftermath. Routine vaccination services were widely disrupted during that time, and the study suggests that many countries simply haven't fully recovered since.

There's also a broader factor at play: vaccine hesitancy, which researchers describe as a growing contributor to the decline, separate from any pandemic-related disruption. In other words, this isn't only about missed appointments during lockdowns. It also reflects a shift in how some parents and communities are approaching vaccination altogether.

What This Means Going Forward

Vaccination remains one of the most effective tools available for preventing serious childhood diseases, and researchers are clear about what's at stake if this trend continues. A sustained drop in coverage doesn't just affect individual children; it also weakens herd immunity, making entire communities more vulnerable to diseases that had largely been kept under control for years.

The study was direct about what needs to happen next, stating that international, national, and community-level action will be necessary to reverse these trends. Without it, the progress that took decades to build could continue to erode, quietly, one missed vaccination at a time.

Think being in great shape and having a “normal” BMI gives men a good shot at fertility? Think again.

While fertility is usually seen as a women's issue, it's increasingly becoming a men's problem too. Sperm counts worldwide have dropped by more than half since 1973, and the decline has been speeding up in recent years. Now, a new study in Denmark just found something that should worry a lot of men.

Researchers looked at over a thousand young men and measured their actual body fat, not just their BMI. What they found was surprising. Men with a "normal" BMI but slightly higher body fat had noticeably lower sperm counts than leaner men in the same weight range.

The Numbers Don't Lie

Men with 20 to 24 percent body fat had sperm counts that were 23 percent lower than the leanest group. This gap showed up even among men who were considered to be of normal weight.

In other words, you could look completely fine, weigh the "right" amount for your height, and still be carrying extra fat that's actually messing with your hormones.

That's because body fat doesn't just sit there. It changes your hormone levels. The study, published in the journal Human Reproduction, found higher body fat was linked to lower testosterone, along with shifts in a few other hormones tied to reproduction.

“Higher body fat percentage was associated with poor semen characteristics and impaired reproductive hormone levels but not with testicular volume,” said the team from Aarhus University, Denmark.

The researchers noted that a higher percentage of adipose tissue might adversely affect semen production and hormonal balance.

Why Muscle Might Matter More Than Weight

It may not really be about losing weight at all. Other studies focus on muscle weight. Muscles may not be just something that makes you look good; they actually work like a hormone-producing organ in your body.

A 2025 study published in Frontiers in Endocrinology examined 823 semen analyses and concluded that assessing fat distribution, rather than obesity alone, could provide additional information about male reproductive health.

So for men thinking about having kids someday, hitting the gym and building muscle might do more for fertility than just watching the number on the scale go down.

What About Weight-Loss Drugs?

Even as many people now are on GLP-1 drugs like Ozempic and Wegovy for weight loss, the question is: do these drugs help or hurt fertility? The early research is actually reassuring.

A review presented at recent ENDO 2026 examined five randomized clinical trials and found no bad effects on hormones, sex drive, or sperm quality in men taking these drugs. However, doctors are worried about men who lose weight too fast and lose muscle along with the fat.

Other Factors That Can Affect Sperm Health

Body composition is only one factor linked to male reproductive health. Lifestyle factors such as smoking, heavy alcohol use, cannabis use, obesity and anabolic steroid use have also been associated with poorer sperm health.

Heat exposure may also affect sperm production. Regular use of saunas and hot tubs has been studied as a potential risk factor, while prolonged heat exposure from devices such as laptops placed directly on the lap has also raised concerns.