Dr. Darragh Ennis

And the stress response is a big factor in senescence. So if you're a very stressed out person with a bad lifestyle, you're gonna age a lot quicker than someone who's just happy-go-lucky and looks after themselves. So you can maximize your chances of being younger for longer, but not forever.

Unfortunately, no.

Unfortunately, no.

Unfortunately, no.

Well, it's driven obviously by the heart, but our blood vessels are quite elastic and they swell and shrink as the pulse rate from your heart comes. So that elastic motion helps maintain blood pressure and it's the pressure of the system that keeps it all moving. So if you have a very closely pressurized system and a pump,

Well, it's driven obviously by the heart, but our blood vessels are quite elastic and they swell and shrink as the pulse rate from your heart comes. So that elastic motion helps maintain blood pressure and it's the pressure of the system that keeps it all moving. So if you have a very closely pressurized system and a pump,

Well, it's driven obviously by the heart, but our blood vessels are quite elastic and they swell and shrink as the pulse rate from your heart comes. So that elastic motion helps maintain blood pressure and it's the pressure of the system that keeps it all moving. So if you have a very closely pressurized system and a pump,

it means that it can reach right to the end of these tiny capillaries that are, you know, potentially a couple of meters away or a meter and a bit away from your heart. And yeah, it's just, it's a constant pressurized system with a constant flow. It's astonishingly efficient considering it's driven by, you know, a lump of muscle about the size of our fists. That doesn't make very much noise.

it means that it can reach right to the end of these tiny capillaries that are, you know, potentially a couple of meters away or a meter and a bit away from your heart. And yeah, it's just, it's a constant pressurized system with a constant flow. It's astonishingly efficient considering it's driven by, you know, a lump of muscle about the size of our fists. That doesn't make very much noise.

it means that it can reach right to the end of these tiny capillaries that are, you know, potentially a couple of meters away or a meter and a bit away from your heart. And yeah, it's just, it's a constant pressurized system with a constant flow. It's astonishingly efficient considering it's driven by, you know, a lump of muscle about the size of our fists. That doesn't make very much noise.

If you ever see how much noise and energy a water pump

If you ever see how much noise and energy a water pump

If you ever see how much noise and energy a water pump

The main thing to remember is that by the laws of physics, you can't make energy, you just change its form. That's all you do. You just mess about with the structure of it. So energy can't be made, it can't be destroyed. So we take the energy from chemical bonds in our food and we just put it into a system that our cells can use.

The main thing to remember is that by the laws of physics, you can't make energy, you just change its form. That's all you do. You just mess about with the structure of it. So energy can't be made, it can't be destroyed. So we take the energy from chemical bonds in our food and we just put it into a system that our cells can use.

The main thing to remember is that by the laws of physics, you can't make energy, you just change its form. That's all you do. You just mess about with the structure of it. So energy can't be made, it can't be destroyed. So we take the energy from chemical bonds in our food and we just put it into a system that our cells can use.

And it's really, really clever and massively efficient how it does so. And it's largely driven by mitochondria, which are small organelles in our cells. And the fun thing is most scientists think that they were originally independent organisms way back in our evolution when we were like single cells that were eaten, essentially, but survived.

And it's really, really clever and massively efficient how it does so. And it's largely driven by mitochondria, which are small organelles in our cells. And the fun thing is most scientists think that they were originally independent organisms way back in our evolution when we were like single cells that were eaten, essentially, but survived.

And it's really, really clever and massively efficient how it does so. And it's largely driven by mitochondria, which are small organelles in our cells. And the fun thing is most scientists think that they were originally independent organisms way back in our evolution when we were like single cells that were eaten, essentially, but survived.

And because they were so good at providing energy, they've become part of our setup. So they're an alien life form that over tens of millions of years has just come along with living animals and helps them provide their energy. So... that massively makes it more efficient. And yeah, it's just, it's a series of different reactions that make food energy into the energy that our cells can use.