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If evolution grinds to a halt, we move on

If evolution grinds to a halt, we move on

According to professor Steve Jones human evolution is grinding to a halt. The reason is, at least in the developed world, we have so good living standards and hence low mortality that we are not suffering any selection. He also argues that the mutation rate has been reduced because changes in reproduction and the larger gene pool. He concludes: "So, if you are worried about what utopia is going to be like, don’t;
at least in the developed world, and at least for the time being, you
are living in it now." As I see it, he has a very modest view of utopia. More seriously, do we have some kind of obligation to evolve?

Read More »If evolution grinds to a halt, we move on

Identifying Sperm Donors, Genetic Privacy and Public Benefit: How to Have Your Cake and Eat It Too

A story in today’s Daily Mail reveals some of the harms experienced by children born to sperm donors. Since 2005, children born to sperm donors have had access to the identity of the man who donated sperm that created them. But prior to that point, donors were not required to disclose their identity. These children are often susceptible to diseases which have a genetic component, like diabetes or bowel cancer, and are unaware that they have such susceptibility. They also sometimes describe a sense of not fitting in with their family, having a different personality and character. Many desperately and vainly seek out their biological fathers.

One problem is that historically, donors gave sperm on the condition of anonymity. Thus they consented believing they would remain anonymous. This was the case in Victoria, Australia, where similar problems have been reported.  The option to remain anonymous was thought to be necessary to ensure a supply of willing donors, and to protect donors from financial and other claims made by their offspring.  But now we place greater value on the genetics of the donor and many children wish to know their biological father and his genes.

So donors have a legitimate interest, based on the conditions of their consent and self interest, in protecting their anonymity. How is this interest to be weighed against the interests in their offspring accessing knowledge about them?

Read More »Identifying Sperm Donors, Genetic Privacy and Public Benefit: How to Have Your Cake and Eat It Too

Time to get virtuously enhanced?

In the media coverage of the global finance crisis over the last weeks there has been a massive call for a revival of the virtues. Everyone from the Archbishop of Canterbury to tabloid journalists has condemned the behaviour of finance industry professionals and words like avarice, immoderation and selfishness have repeatedly featured in the news. It would appear that Gordon Gecko’s once trendy motto “Greed is good” has lost some if its appeal.

Read More »Time to get virtuously enhanced?

Fishing outside the reef: the illusion of control and finance

Humans regularly see patterns where there are none, but stress makes this tendency worse. Some new studies suggest this may be making the current market troubles worse. Jennifer Whitson and Adam Galinsky (Lacking Control Increases Illusory Pattern Perception, Science 3 October 2008 Vol. 322. no. 5898, pp. 115-117) demonstrated that when people feel they lack control, they see more  illusory patterns in noise and stock market information, perceive conspiracies and accept superstitions more readily. But is this the key to understanding the financial turmoil?

Read More »Fishing outside the reef: the illusion of control and finance

Refusing to refer: thus conscience doth make cowards of us all

In the Australian state of Victoria next week a proposal to make abortion legal in certain
circumstances is due to be voted on by the upper house. Some doctors,
as well as the Catholic church, have attacked one clause in that
legislation, as it is said to deny doctors the right to conscientiously
object to abortion. But what is the proper role of the doctor’s
conscience in medical care, and how should it be taken into account
when it conflicts with the conscience of the patient?

Read More »Refusing to refer: thus conscience doth make cowards of us all

Knowledge may be power, but is it healing?

The
explosion of medical information on the internet is a good thing,
right?  Patients worried that their condition
is not being taken seriously, those who want a second opinion but are worried
about upsetting their GP by asking for it, and those with symptoms too trifling
or embarrassing to take to a doctor—all these people who, fifteen years ago, may
have felt at a dead end with the medical profession can now use
the internet to research their conditions from the comfort of their own homes.

Read More »Knowledge may be power, but is it healing?

The price of ignorance: the Durham study and research ethics

Ben Goldacre (who seems to be one of this blog’s favorite
sources) tears into the Durham fish oil trial. A while ago Durham County together with the company Equazen decided
to test whether giving omega-3 supplements would improve the GCSE scores of
children. Unfortunately there were clear problems with the trial design. In the
face of criticism the organisations involved refused to give out information on
the experimental setup and even claimed not to be running it as a trial (despite numerous statements to the
press). GCSE scores did not generally increase. Despite this, now positive results are claimed – largely because what is measured has been changed to suit
the data
. The most vexing thing about the whole affair is that the
trial could have been done in a proper manner for the same amount of money.

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Publishing Negative Research Results

Ben Goldacre, in the Guardian this weekend, noticed the range of headlines on health and health risks that are to be found in the media. He mentions, among others, the rise of ‘manorexia’, the failure of water to induce weight loss and the dangers of antibiotics to prevent premature birth. I found a couple more: It turns out that dark chocolate can reduce the risk of heart attacks, vegetable rich diets and in particular vegetables like broccoli reduce the chance of heart disease and stroke and turmeric, the spice that makes curries yellow, can reduce the size of hemorrhagic stroke.

It’s quite striking what research is done!

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DON’T PANIC

It has been an extraordinary week in the financial markets of the
world. With the collapse of major international financial institutions,
and governments forced to intervene by propping up ailing insurers or
authorising the merger of banks, newspaper headlines have competed to
convey the scale and significance of the crisis. But there is a
difficult line for newspaper editors and sub-editors to tread
between
accurately reflecting the enormity of the market upheavals, and
contributing to the crisis. Should newspapers be censored, or censor
themselves at times of great market sensitivity or do they have a duty
to their readers to speak the truth?

Read More »DON’T PANIC