Although it might help with fighting age-related diseases in the future, research into calorie restriction and aging is not so far along – or free of contradictions – that we should factor it into our dietary choices.

Could eating less help us look younger, and more importantly, could it help us live longer? A few studies seem to show that this could be the case, but there are no conclusive results yet.

Produced by The World Wildlife Found WWF. Here are some more tips for reducing the amount of plastic you use on a daily basis. It's not just food that comes wrapped in excess plastic, but cosmetics and DVDs as well.

Produced by The World Wildlife Found WWF. Here are ten simple tips to help reduce the amount of plastic you use in your everyday life. Small actions can add up to a lot less plastic!

The Lochmühle Amusement Park, situated on a former pony farm near Frankfurt, offers plenty of rides and entertainment for young children.

This small school in the federal state of Baden-Württemberg is quite unique in terms of the independence it grants its students... take a look!

In a rare close-up, we see the mother eagle working hard to keep its offspring fed. Then we get a look at the Innergschlöß, an 800-year-old Alpine settlement.

Our exploration of wildlife in the Tyrolean Alps continues as we visit cuddly marmots and one of their most fearsome predators: the golden eagle.

In this segment, we get to know the bearded vulture, a scavenging bird of prey that has resettled in the Hohe Tauern National Park. Now there are even stations in the park that address some of the misconceptions that almost led to this bird's extinction.

Life in the alpine pastures of Tyrol has its own pace in tune with natural cycles. We visit an alpine farmer and his wife and learn about traditional dairy products and how they are made.

Tina interviews Mirja Löhr, the director of the company Ekomo. The start-up has created a heating system that works using induction and can therefore be much more sustainable than heating with oil or gas.

Cettina tells the legend of how the pretzel got its shape and its lye glaze. Afterwards, Cettina and Sara compare a store-bought pretzel with one of the ones they made themselves.

Tina interviews Sven Siegrist, a professional photographer. Sven and his wife mainly do wedding photography, covering the preparations, the ceremony itself, a photo shoot with the couple, and the festivities.

Cettina talks about the German traditions that take place on Pentecost and Whit Monday.

Cettina and Sarah cook a very traditional Bavarian meal: pretzels made from scratch with sausages.