As daylight savings time comes to an end, parents of young children may find themselves anxious about how the shift will disrupt their baby’s sleep schedules. Research indicates that the transition can be challenging for infants and toddlers, as their biological clocks require time to adjust, much like adults.

Dr. Pamela Douglas, a general practitioner and sleep researcher from Australia, emphasizes that even though mechanical clocks change immediately, the body’s internal clock takes longer to adapt. A study analyzing the sleep patterns of over 600 children following the spring clock change revealed that toddlers aged one to two years took an average of three days to return to their original bedtime, while infants under one experienced an adjustment period of about eight days. Additionally, the shift affected morning wake times, with some age groups losing an hour of sleep in the days following the transition. Notably, infants aged six to 11 months experienced a reduction in nighttime sleep of seven to 15 minutes, even four weeks post-adjustment.

Despite the slight reduction in nighttime sleep, experts from organizations such as the National Sleep Foundation stress that this loss is minimal compared to the total sleep recommended for infants, which ranges from 12 to 15 hours in a 24-hour period for those aged four to 11 months.

It is important to recognize that infants’ sleep patterns are inherently flexible. The notion of adhering to rigid sleep schedules is a relatively modern concept. In many pre-industrial societies, children often sleep with caregivers or drift off in their arms without a fixed bedtime routine. For example, a study of Maya families in Guatemala noted that babies would simply fall asleep when tired, alongside the rest of the family.

The impact of seasonal changes on sleep patterns also warrants attention. Research has shown that humans naturally tend to sleep longer in winter and shorter in summer. A study of foraging societies indicates that nighttime sleep duration can vary by nearly an hour between seasons, with winter sleep averaging 53 to 56 minutes longer. Although industrial societies experience less dramatic seasonal changes, they still feel some effects; for instance, a study of medical students in Berlin found that winter sleep duration increased by approximately 18 minutes compared to summer.

Moreover, studies have indicated that babies older than 10 weeks can also experience changes in sleep quality with the seasons. In autumn, eight-month-olds may enjoy less fragmented sleep and more slow-wave sleep compared to spring. In another study involving both eight-month-olds and 24-month-olds, researchers noted increased rhythmic brain activity during non-rapid eye movement sleep during the autumn months.

As parents navigate the upcoming clock change, understanding these sleep dynamics may help ease the transition for both themselves and their children.

Recent reports reveal Google’s influence on public opinion through its search algorithms, which may reinforce users’ existing beliefs and contribute to societal divides. A comparison of Google searches related to Vice President Kamala Harris illustrates this phenomenon. When users searched for “Is Kamala Harris a good Democratic candidate,” they were met with articles highlighting positive aspects, including a Pew Research Center poll that found Harris “energizes Democrats” and an Associated Press article noting widespread support among Democrats for Harris as a potential president. However, when searching for “Is Kamala Harris a bad Democratic candidate,” users encountered more critical results, including a top article from Reason Magazine and several opinion pieces with negative views on her candidacy.

This divergence in search outcomes underscores a wider issue: Google’s algorithm often reflects user inclinations back to them, creating a “feedback loop” that reinforces their original queries. According to Varol Kayhan, assistant professor of information systems at the University of South Florida, search engines like Google heavily shape the information people see and the beliefs they form. “We’re at the mercy of Google when it comes to what information we’re able to find,” he said.

Sarah Presch, digital marketing director at Dragon Metrics, an SEO-focused platform, noticed the impact of Google’s approach in searches beyond politics, such as healthcare. Presch found that when searching “link between coffee and hypertension,” Google’s Featured Snippet quoted from the Mayo Clinic, suggesting caffeine could cause a temporary spike in blood pressure. However, searching “no link between coffee and hypertension” produced a snippet from the same article, stating that caffeine does not have long-term blood pressure effects. Presch notes this as evidence that Google surfaces content tailored to confirm user queries, regardless of the nuances in source material.

Google’s spokesperson defended the search giant’s practices, stating that the goal is to present high-quality, relevant information and allow users access to a range of perspectives. Google also pointed to research suggesting that user choices drive exposure to partisan information rather than algorithmic design alone.

Despite these assertions, some experts argue that Google’s algorithms play a central role in perpetuating echo chambers, particularly in politically charged queries. Silvia Knobloch-Westerwick, professor at Technische Universität Berlin, notes that even if users have some control over the information they engage with, the algorithms determine the options that appear before them.

Another issue lies in Google’s approach to search queries themselves. Mark Williams-Cook, founder of the SEO tool AlsoAsked, explained that Google’s algorithms prioritize user reactions to content rather than deep document analysis. A 2016 internal Google presentation stated that “we hardly look at documents. We look at people.” Williams-Cook argues that this reliance on user engagement to rank content creates a “feedback loop” that feeds users content matching their interests—potentially at the cost of objectivity.

Although Google says its algorithms have evolved significantly since 2016, Williams-Cook believes the underlying model persists. He likens Google’s system to “letting a kid pick out their diet based on what they like,” adding, “they’ll just end up with junk food.” As search engines continue to influence how people find and consume information, experts warn that algorithm-driven bias could amplify confirmation bias and limit exposure to diverse viewpoints.